Bluetooth is a wireless technology standard for exchanging data over short distances. It allows many types of digital devices to connect easily and quickly without cables by creating small personal area networks. Bluetooth works using a radio technology called frequency-hopping spread spectrum that breaks up data being sent and transmits pieces of it on up to 79 bands from 2.4-2.4835 GHz. It defines protocols for devices to discover each other and establish connections to exchange data over the air. Bluetooth is gaining popularity and acceptance for enabling wireless connections between diverse devices from phones to laptops to peripherals. While offering advantages, it also raises some issues regarding interference, security, and reliability that require analysis.
This document provides an overview of Bluetooth technology. It defines Bluetooth as a short-range wireless technology originally developed for exchanging data over short distances between fixed and mobile devices. The document then discusses the history of Bluetooth, its key characteristics such as frequency range and data rates, how it works using frequency hopping spread spectrum, its security features and advantages/disadvantages. Finally, it outlines some applications of Bluetooth and envisions its future including higher data rates, reduced power consumption and increased range.
The document discusses Bluetooth technology. It provides an overview of Bluetooth, including its history and development. The key points are:
- Bluetooth was developed in 1994 as a wireless standard to replace wired cables and enable communication between nearby electronic devices.
- It uses short-range radio transmissions in the 2.4GHz spectrum for data transfer between devices within about 10 meters of each other.
- The Bluetooth standard defines protocols and procedures for device discovery, connection establishment, and data and voice transfer between paired devices.
- Common applications of Bluetooth include wireless headphones, medical devices, sports sensors, and connecting computers, phones and other consumer electronics without cables.
- The technology aims to provide secure, low
It includes versions of Bluetooth, how Bluetooth works, Bluetooth profile, Bluetooth core architecture, power classes of Bluetooth, Bluetooth protocol, advantages and applications of Bluetooth.
Bluetooth is a wireless technology that allows electronic devices to communicate within short distances without wires or cables. It was invented in 1994 by Ericsson and uses radio waves to transfer data between devices like phones, laptops, and other portable devices. Common applications of Bluetooth include file transfers, connecting peripherals, wireless headphones, and connecting to cars or home stereos for hands-free calling.
This document provides an overview of Bluetooth technology, including its history, specifications, networks, layers, applications, and issues. Bluetooth was developed in the late 1990s to facilitate short-range wireless connectivity between devices. It uses radio waves and frequency hopping to transmit data between devices within a personal area network. Common applications of Bluetooth technology include connecting headphones, printers, and automobiles. While scalability and throughput are limitations, Bluetooth provides a simple, inexpensive way to connect electronic devices without wires.
This document discusses Bluetooth technology and its use in smart sensor networks. It begins with an introduction of Bluetooth and its specifications. It then explains the two main Bluetooth topologies - piconet and scatternet. Next, it describes how Bluetooth can be used to create wireless sensor networks and the roles of smart sensor nodes and the gateway. It outlines the hardware and software considerations for implementing a Bluetooth smart sensor network and the process the gateway uses to communicate with smart sensor nodes. In conclusion, it briefly discusses applications of sensor networks and factors that influence sensor network design.
Bluetooth is a wireless technology standard for exchanging data over short distances. It was originally conceived as a cable replacement and can be used for data transfer, wireless audio, etc. Bluetooth operates in the 2.4 GHz spectrum and has an effective range of about 10 meters. It works by establishing short-range radio links called piconets that allow devices to connect and exchange information securely in an ad-hoc manner. The technology has grown in popularity and future versions aim to improve capabilities such as speed, range and security.
The document discusses WiFi architecture and technology. It covers the history and development of WiFi standards like 802.11b, 802.11a, and 802.11g. It explains how WiFi networks work using access points and wireless cards. The document also discusses WiFi configurations, applications, security measures, advantages, limitations and innovations in WiFi technology.
This document provides an overview of Bluetooth technology. It defines Bluetooth as a short-range wireless technology originally developed for exchanging data over short distances between fixed and mobile devices. The document then discusses the history of Bluetooth, its key characteristics such as frequency range and data rates, how it works using frequency hopping spread spectrum, its security features and advantages/disadvantages. Finally, it outlines some applications of Bluetooth and envisions its future including higher data rates, reduced power consumption and increased range.
The document discusses Bluetooth technology. It provides an overview of Bluetooth, including its history and development. The key points are:
- Bluetooth was developed in 1994 as a wireless standard to replace wired cables and enable communication between nearby electronic devices.
- It uses short-range radio transmissions in the 2.4GHz spectrum for data transfer between devices within about 10 meters of each other.
- The Bluetooth standard defines protocols and procedures for device discovery, connection establishment, and data and voice transfer between paired devices.
- Common applications of Bluetooth include wireless headphones, medical devices, sports sensors, and connecting computers, phones and other consumer electronics without cables.
- The technology aims to provide secure, low
It includes versions of Bluetooth, how Bluetooth works, Bluetooth profile, Bluetooth core architecture, power classes of Bluetooth, Bluetooth protocol, advantages and applications of Bluetooth.
Bluetooth is a wireless technology that allows electronic devices to communicate within short distances without wires or cables. It was invented in 1994 by Ericsson and uses radio waves to transfer data between devices like phones, laptops, and other portable devices. Common applications of Bluetooth include file transfers, connecting peripherals, wireless headphones, and connecting to cars or home stereos for hands-free calling.
This document provides an overview of Bluetooth technology, including its history, specifications, networks, layers, applications, and issues. Bluetooth was developed in the late 1990s to facilitate short-range wireless connectivity between devices. It uses radio waves and frequency hopping to transmit data between devices within a personal area network. Common applications of Bluetooth technology include connecting headphones, printers, and automobiles. While scalability and throughput are limitations, Bluetooth provides a simple, inexpensive way to connect electronic devices without wires.
This document discusses Bluetooth technology and its use in smart sensor networks. It begins with an introduction of Bluetooth and its specifications. It then explains the two main Bluetooth topologies - piconet and scatternet. Next, it describes how Bluetooth can be used to create wireless sensor networks and the roles of smart sensor nodes and the gateway. It outlines the hardware and software considerations for implementing a Bluetooth smart sensor network and the process the gateway uses to communicate with smart sensor nodes. In conclusion, it briefly discusses applications of sensor networks and factors that influence sensor network design.
Bluetooth is a wireless technology standard for exchanging data over short distances. It was originally conceived as a cable replacement and can be used for data transfer, wireless audio, etc. Bluetooth operates in the 2.4 GHz spectrum and has an effective range of about 10 meters. It works by establishing short-range radio links called piconets that allow devices to connect and exchange information securely in an ad-hoc manner. The technology has grown in popularity and future versions aim to improve capabilities such as speed, range and security.
The document discusses WiFi architecture and technology. It covers the history and development of WiFi standards like 802.11b, 802.11a, and 802.11g. It explains how WiFi networks work using access points and wireless cards. The document also discusses WiFi configurations, applications, security measures, advantages, limitations and innovations in WiFi technology.
Broadband technology wired and wireless DILSHAD AHMAD
This document discusses different types of broadband technologies including wired and wireless options. It focuses on Asymmetric Digital Subscriber Line (ADSL) technology, how it works by splitting bandwidth across telephone lines, and uses discrete multi-tone (DMT) modulation. Wireless broadband technologies discussed include fixed wireless services like Local Multipoint Distribution System (LMDS) and Multichannel Multipoint Distribution Service (MMDS) that provide internet access for homes and offices over a wide area. The document also covers broadband speeds, ranges provided by different technologies, and services that can be accessed through broadband internet connections.
This document summarizes a technical seminar presentation on Bluetooth technology. It includes an agenda covering an introduction to Bluetooth, its states, features, protocol stack including layers like RFCOMM, L2CAP, and the link controller. It describes Bluetooth's short-range wireless communication, various states like standby and connected, its layered protocol stack, and security features. The presentation concludes by asking if there are any questions.
VLSI stands for Very Large Scale integration is the art of integrating millions of transistors on a Silicon Chip. Researchers are working to incorporate large scale integration of electronic devices on a single silica chip “Integrated Circuit or IC” to fulfill the market demand. Here, in this presentation we will learn introduction and history of VLSI, VLSI Design Style and Flow, VLSI Design Approaches, CPLD, FPGA, Programmable Logic Arrays, Xilinx vs. Altera Design tools, flow and files.
These slides cover a topic on B ISDN in Data Communication. All the slides are explained in a very simple manner. It is useful for engineering students & also for the candidates who want to master data communication & computer networking.
Bluetooth is a wireless technology standard that allows short-range wireless transmissions between devices like mobile phones, headphones, laptops and more. It uses short-wavelength UHF radio waves in the industrial, scientific and medical radio bands to transmit data over short distances of about 10 meters. Bluetooth specifications include frequency hopping, packet structure and encryption for security.
This document provides an overview of digital subscriber line (DSL) technology. It discusses how DSL uses existing telephone lines to provide high-speed internet access simultaneously with phone service. The document outlines the different types of DSL standards, how DSL works by separating voice and data signals, and its advantages like faster speeds and ability to use internet and phone simultaneously. Potential disadvantages discussed include reduced speeds over long distances from the provider and faster download than upload speeds.
The network layer is responsible for routing packets from source to destination using a routing algorithm. The routing algorithm must deal with issues of correctness, stability, fairness, and optimality. The network layer also handles congestion when more packets enter an area than can be processed. When connecting different network technologies, the same problems are present but are worse as packets may travel through many different networks with different formats and technologies.
The document is a term paper on cell phone jammers submitted by Sameer Gupta. It discusses the history of cell phone jammers and how they work to disrupt communication between a cell phone and cell tower. It describes the components of a cell phone jammer including the power supply, circuitry, and antenna. It also covers jamming techniques, types of jammers, applications, legal issues, and alternatives to jamming. The paper was submitted to fulfill requirements for a course at Amity University Rajasthan under the guidance of instructor Sally Goyal.
Bluetooth is an open wireless technology standard for exchanging data over short distances between devices like mobile phones, headphones, cars and computers. It allows for personal area networks and has high levels of security. The document provides an overview of Bluetooth including its history, specifications, operation, applications and limitations.
1. The document discusses the evolution of wireless technologies from 1G to 5G, outlining the key features and drawbacks of each generation.
2. Early generations like 1G provided basic voice calling using analog signals at speeds up to 2.4kbps but had issues like poor battery life and voice quality. 2G introduced digital signals and SMS at speeds up to 64kbps.
3. Later generations such as 3G (144kbps-2Mbps), 4G (100Mbps-1Gbps), and emerging 5G (expected speeds over 1Gbps) have provided significantly higher data speeds and capabilities like video calling, but also face challenges around implementation costs, bandwidth requirements, and
Bluetooth is a wireless technology that allows electronic devices to communicate within short distances of each other without cables. It was invented in 1994 by Ericsson and developed further by the Bluetooth Special Interest Group. Bluetooth uses radio waves to transmit data between devices like phones, laptops, and other portable electronics using a frequency-hopping technique.
This document summarizes a project on power line communication systems submitted for a BSc in Electronic Engineering. It discusses using power lines for data communication, avoiding additional wiring. Power lines were not designed for data transmission, causing impairments like high attenuation and interference. The project applies OFDM modulation to optimize data rates over power lines. It simulates a basic PLC system and finds OFDM can deliver high data rates with low errors. The document recommends applying smart grid concepts and security methods to improve power line communication networks.
This document provides an overview and guidelines for the design and installation of a Fiber-To-The-Home (FTTH) network. It describes the different components of an outside plant (OSP) including optical fiber cables, closures, and fiber distribution hubs. It also covers inside plant (ISP) materials like riser cables and termination boxes. The document establishes design criteria for both the OSP and ISP and provides guidance on network topologies, pre-wiring deployment, and redundancy strategies.
This document discusses built-in self-test (BIST) techniques for integrated circuits. It provides an overview of BIST architecture, which includes a test pattern generator, test application to the circuit under test, and a response verification component. The document outlines different methods for test pattern generation, such as exhaustive, pseudo-exhaustive, pseudo-random, and test pattern augmentation. It also describes various response compaction techniques like parity testing, one counting, transition counting, and signature analysis that are used to compact the circuit response due to the large amount of test data produced. Benefits of BIST include reduced testing costs and ability to test at operating speeds, while costs include increased chip area and testing of the BIST hardware
2.4 GHz Open band
Globally available
Other devices include microwave ovens, cordless phones
Frequency hopping and Time Division Multiplexing
10 – 100 meter range
Up to 8 active devices can be in the same piconet
Manideep Srirangam completed an inplant training at BSNL Hyderabad from May 25th to June 6th 2015. The training covered an overview of topics in telecommunication including telecommunication networks, PCM principles and multiplexing, digital switching principles, signaling, latest switches, optical fiber communication, GSM and CDMA technologies, and facilities provided by electronic exchanges such as broadband and DSL technologies. Key concepts covered included time division multiplexing, frequency division multiplexing, digital switching, fiber types, PDH systems, and facilities available to subscribers like call forwarding and call waiting.
FPGAs allow for reconfigurable circuitry, easier entry with lower costs, and are well-suited for applications that may require frequent design upgrades. However, FPGAs are less energy efficient, have lower maximum operating frequencies, and do not support analog designs compared to ASICs. While FPGAs are useful for prototyping, ASICs are better suited for high-volume mass production since their circuitry is permanently optimized for a specific application.
This short document promotes the creation of Haiku Deck presentations on SlideShare and encourages the reader to get started making their own presentation. It features a stock photo and a call to action to create a Haiku Deck on SlideShare.
Broadband technology wired and wireless DILSHAD AHMAD
This document discusses different types of broadband technologies including wired and wireless options. It focuses on Asymmetric Digital Subscriber Line (ADSL) technology, how it works by splitting bandwidth across telephone lines, and uses discrete multi-tone (DMT) modulation. Wireless broadband technologies discussed include fixed wireless services like Local Multipoint Distribution System (LMDS) and Multichannel Multipoint Distribution Service (MMDS) that provide internet access for homes and offices over a wide area. The document also covers broadband speeds, ranges provided by different technologies, and services that can be accessed through broadband internet connections.
This document summarizes a technical seminar presentation on Bluetooth technology. It includes an agenda covering an introduction to Bluetooth, its states, features, protocol stack including layers like RFCOMM, L2CAP, and the link controller. It describes Bluetooth's short-range wireless communication, various states like standby and connected, its layered protocol stack, and security features. The presentation concludes by asking if there are any questions.
VLSI stands for Very Large Scale integration is the art of integrating millions of transistors on a Silicon Chip. Researchers are working to incorporate large scale integration of electronic devices on a single silica chip “Integrated Circuit or IC” to fulfill the market demand. Here, in this presentation we will learn introduction and history of VLSI, VLSI Design Style and Flow, VLSI Design Approaches, CPLD, FPGA, Programmable Logic Arrays, Xilinx vs. Altera Design tools, flow and files.
These slides cover a topic on B ISDN in Data Communication. All the slides are explained in a very simple manner. It is useful for engineering students & also for the candidates who want to master data communication & computer networking.
Bluetooth is a wireless technology standard that allows short-range wireless transmissions between devices like mobile phones, headphones, laptops and more. It uses short-wavelength UHF radio waves in the industrial, scientific and medical radio bands to transmit data over short distances of about 10 meters. Bluetooth specifications include frequency hopping, packet structure and encryption for security.
This document provides an overview of digital subscriber line (DSL) technology. It discusses how DSL uses existing telephone lines to provide high-speed internet access simultaneously with phone service. The document outlines the different types of DSL standards, how DSL works by separating voice and data signals, and its advantages like faster speeds and ability to use internet and phone simultaneously. Potential disadvantages discussed include reduced speeds over long distances from the provider and faster download than upload speeds.
The network layer is responsible for routing packets from source to destination using a routing algorithm. The routing algorithm must deal with issues of correctness, stability, fairness, and optimality. The network layer also handles congestion when more packets enter an area than can be processed. When connecting different network technologies, the same problems are present but are worse as packets may travel through many different networks with different formats and technologies.
The document is a term paper on cell phone jammers submitted by Sameer Gupta. It discusses the history of cell phone jammers and how they work to disrupt communication between a cell phone and cell tower. It describes the components of a cell phone jammer including the power supply, circuitry, and antenna. It also covers jamming techniques, types of jammers, applications, legal issues, and alternatives to jamming. The paper was submitted to fulfill requirements for a course at Amity University Rajasthan under the guidance of instructor Sally Goyal.
Bluetooth is an open wireless technology standard for exchanging data over short distances between devices like mobile phones, headphones, cars and computers. It allows for personal area networks and has high levels of security. The document provides an overview of Bluetooth including its history, specifications, operation, applications and limitations.
1. The document discusses the evolution of wireless technologies from 1G to 5G, outlining the key features and drawbacks of each generation.
2. Early generations like 1G provided basic voice calling using analog signals at speeds up to 2.4kbps but had issues like poor battery life and voice quality. 2G introduced digital signals and SMS at speeds up to 64kbps.
3. Later generations such as 3G (144kbps-2Mbps), 4G (100Mbps-1Gbps), and emerging 5G (expected speeds over 1Gbps) have provided significantly higher data speeds and capabilities like video calling, but also face challenges around implementation costs, bandwidth requirements, and
Bluetooth is a wireless technology that allows electronic devices to communicate within short distances of each other without cables. It was invented in 1994 by Ericsson and developed further by the Bluetooth Special Interest Group. Bluetooth uses radio waves to transmit data between devices like phones, laptops, and other portable electronics using a frequency-hopping technique.
This document summarizes a project on power line communication systems submitted for a BSc in Electronic Engineering. It discusses using power lines for data communication, avoiding additional wiring. Power lines were not designed for data transmission, causing impairments like high attenuation and interference. The project applies OFDM modulation to optimize data rates over power lines. It simulates a basic PLC system and finds OFDM can deliver high data rates with low errors. The document recommends applying smart grid concepts and security methods to improve power line communication networks.
This document provides an overview and guidelines for the design and installation of a Fiber-To-The-Home (FTTH) network. It describes the different components of an outside plant (OSP) including optical fiber cables, closures, and fiber distribution hubs. It also covers inside plant (ISP) materials like riser cables and termination boxes. The document establishes design criteria for both the OSP and ISP and provides guidance on network topologies, pre-wiring deployment, and redundancy strategies.
This document discusses built-in self-test (BIST) techniques for integrated circuits. It provides an overview of BIST architecture, which includes a test pattern generator, test application to the circuit under test, and a response verification component. The document outlines different methods for test pattern generation, such as exhaustive, pseudo-exhaustive, pseudo-random, and test pattern augmentation. It also describes various response compaction techniques like parity testing, one counting, transition counting, and signature analysis that are used to compact the circuit response due to the large amount of test data produced. Benefits of BIST include reduced testing costs and ability to test at operating speeds, while costs include increased chip area and testing of the BIST hardware
2.4 GHz Open band
Globally available
Other devices include microwave ovens, cordless phones
Frequency hopping and Time Division Multiplexing
10 – 100 meter range
Up to 8 active devices can be in the same piconet
Manideep Srirangam completed an inplant training at BSNL Hyderabad from May 25th to June 6th 2015. The training covered an overview of topics in telecommunication including telecommunication networks, PCM principles and multiplexing, digital switching principles, signaling, latest switches, optical fiber communication, GSM and CDMA technologies, and facilities provided by electronic exchanges such as broadband and DSL technologies. Key concepts covered included time division multiplexing, frequency division multiplexing, digital switching, fiber types, PDH systems, and facilities available to subscribers like call forwarding and call waiting.
FPGAs allow for reconfigurable circuitry, easier entry with lower costs, and are well-suited for applications that may require frequent design upgrades. However, FPGAs are less energy efficient, have lower maximum operating frequencies, and do not support analog designs compared to ASICs. While FPGAs are useful for prototyping, ASICs are better suited for high-volume mass production since their circuitry is permanently optimized for a specific application.
This short document promotes the creation of Haiku Deck presentations on SlideShare and encourages the reader to get started making their own presentation. It features a stock photo and a call to action to create a Haiku Deck on SlideShare.
The vessel is a multipurpose offshore support vessel built in 1981 in Finland. It has a length of 83 meters, breadth of 16.02 meters, and maximum draught of 5.512 meters. It has a deadweight of 1500 tonnes and is classed by DNV. The vessel is equipped for diving support, ROV, and subsea construction operations. It has dynamic positioning systems up to class 2. The vessel accommodation can support up to 80 persons including a hospital and recreation areas. It has a helideck certified for helicopters up to the Super Puma class.
Pedoman ini menjelaskan rencana kegiatan peringatan Hari Guru Nasional dan HUT ke-69 PGRI pada tahun 2014, meliputi tujuan, dasar hukum, tema, panitia, jenis kegiatan seperti upacara peringatan, ziarah makam, sosialisasi kode etik guru, konsolidasi organisasi, dan pemberian penghargaan. Kegiatan akan berlangsung dari Oktober hingga November 2014 di tingkat nasional, provinsi, kabupaten/kota
The document provides specifications for a saturation diving system including:
- The system can accommodate up to 12 divers working in shifts of 3 divers down to 300 meters sea water.
- Key equipment includes a 6-person main chamber, transfer under pressure (TUP), 3-person additional chamber, hyperbaric rescue chamber for 12 people, and diving bell.
- Equipment is designed by DNV standards and can operate indefinitely with unlimited dive times at depths down to 300 meters sea water.
Voting is an essential feature of democracy, but electoral fraud unfortunately is as old as voting itself. Increasingly, however, the way we count our votes completely depends on the computer system. Those systems have to work correctly and securely or the outcome of the election could be in jeopardy. Many jurisdictions don’t have in place proper safeguards, which create new opportunities for fraud.
The goal of the report is to provide sound understanding of how computer security is critical to the election process in broadly applicable sense and what we need to do to keep the election secure.
This high performance diving vessel is ideally suited for intensive multi-jacket inspection, maintenance, and repair campaigns. It has a 1,000m2 flat upper deck and two 60-ton cranes. It is 183.4m long, has a deadweight of 2,350 tons, and can operate dynamically positioned for tasks like ROV operations, subsea installation works, and crane operations to depths of 350m. Accommodations include 86 berths across 57 cabins.
Piaget's theory of cognitive development proposes four universal stages through which children's thinking progresses as they interact with the world: sensorimotor, preoperational, concrete operational, and formal operational. The document outlines Piaget's key concepts including schemes, assimilation, accommodation, and equilibration. It then describes the stages in detail, noting their age ranges, main characteristics, and limitations/achievements. The document concludes with discussing applying Piaget's theory to educational practice and creative thinking activities.
This document provides specifications for a 12-person saturation diving system. The key components include:
1) A three-person diving bell handled by an A-frame assembly and hydraulic winch
2) Two living decompression chambers (DDC-013 with 4 bunks and DDC-021 with 6 bunks)
3) A 12-person hyperbaric rescue chamber (HRC) with three bunks
4) A transfer under pressure (TUP) chamber connecting the other components
5) Support equipment like environmental controls, hot water, gas distribution, and electrical systems housed in separate containers.
The system is designed for saturation diving up to 200m water depth and certification
Investigating the potential of Big Data Analyticv2Madlena Pavlova
This document discusses big data and how companies monetize the value within big data. It defines big data and discusses the growth and sources of big data, including employee, user, and machine generated data. It examines the ownership of big data and how data analytics can unlock its potential. Case studies show how weather data helps predict sales and how wine shelf placement impacts purchases. Further research is needed on big data case studies, social media marketing, problems with big data, and the future of big data.
1. Bluetooth is a wireless protocol that allows short-range data transmission between fixed and mobile devices like phones, computers, and headphones, creating personal area networks.
2. It operates on the globally unlicensed 2.4 GHz radio frequency and has a maximum data transfer rate of 1 Mb/s.
3. Bluetooth devices can communicate and exchange information when within about 10 meters of each other, enabling uses like wireless headphones and file transfers between devices.
Karunvir Singh presented on Bluetooth technology. Bluetooth allows for short-range wireless communication between various devices using short-wavelength radio transmissions between 2400-2480 MHz. It uses frequency-hopping spread spectrum technology to transmit data between up to 7 devices within a piconet. Common applications of Bluetooth include wireless headsets, connecting phones to car stereos, file transfers between devices, and connecting input/output devices like mice, keyboards, and printers wirelessly. Bluetooth adapters can enable non-embedded devices like PCs to connect to other Bluetooth devices. The Bluetooth specification was developed in 1994 and is now standardized and governed by the Bluetooth Special Interest Group.
Karunvir Singh from Collage kcl-imt in Jal. Punjab presented on Bluetooth. Bluetooth is a wireless technology standard that allows for short-range data transmission between devices using radio waves. It can connect up to 7 devices in a piconet and devices can switch between master and slave roles. Bluetooth uses frequency hopping spread spectrum technology across the 2.4 GHz band. Common applications include wireless headsets, connecting phones to car stereos, file transfers between devices, and replacing cables for keyboards, mice, and other computer peripherals. Devices must support Bluetooth profiles to communicate using defined applications.
Bluetooth is a wireless technology standard that allows various digital devices to connect and exchange information over short distances without cables. It uses short-wavelength radio transmissions in the industrial, scientific and medical radio bands to facilitate connections between devices like mobile phones, headphones, laptops and printers. Key benefits of Bluetooth include its global acceptance, ability to connect a wide range of devices easily, secure connections, and low power consumption. It works by creating personal area networks between devices within about 30 feet of each other.
Bluetooth is a wireless protocol that allows short-range data transmission between devices like mobile phones, laptops, printers, and more. It uses radio waves to connect devices within about 100 meters of each other without requiring line of sight. Bluetooth specifications have evolved over time from initial versions 1.0 and 1.1 that had issues, to later versions that increased data rates and added new features. Common applications of Bluetooth include connecting headphones to phones and transferring files between devices. While similar in using radio waves, Wi-Fi provides higher throughput over greater distances but requires more expensive hardware.
Bluetooth is a wireless technology standard that allows short-range wireless connections between devices like mobile phones, laptops, printers, and other electronics. The document provides an overview of Bluetooth including its history, how it works using frequency-hopping spread spectrum in the 2.4GHz band, supporting up to 10 meters of range. It discusses Bluetooth components, security modes, early slow product rollout, and potential business uses and benefits like replacing cables and wireless file sharing. Standards bodies like the Bluetooth SIG and key technology leaders are also mentioned.
Bluetooth is a wireless technology standard that allows various digital devices to connect and exchange information over short distances without wires. It uses radio waves that can transmit up to 10 meters and allows up to 8 devices to connect in a personal area network (PAN). The presentation discusses the history of Bluetooth, how it works using frequency hopping, its advantages over infrared technology, applications, benefits like ease of use and globally accepted standard, and competing wireless technologies.
Bluetooth is an open wireless technology standard used for exchanging data over short distances between devices like phones, laptops, desktops, headphones, home electronics and more. Devices can form ad-hoc networks called piconets to connect and exchange information without cables. The Bluetooth specifications are developed by the Bluetooth Special Interest Group to provide a universal standard for wireless personal area networks.
The document provides an overview of Bluetooth technology, including its history, working, specifications, advantages, disadvantages, and applications. It describes how Bluetooth was developed in the 1990s as a wireless alternative to cables that connects electronic devices like phones, laptops, and printers. The technology uses frequency-hopping spread spectrum in the 2.4GHz band to enable cable-free connectivity within short ranges. It has become a global standard and is widely used in mobile phones and wireless headphones.
This document provides an overview of Bluetooth technology, including its history, core concepts, and advantages/disadvantages. Bluetooth was created in the 1990s as a wireless alternative to data cables that operates using short-range radio waves. It allows for connectivity between devices like phones, headphones, speakers within about 30 feet. While convenient for eliminating wires, Bluetooth has limitations like short range, slow speeds, and potential security issues. However, newer versions continue improving its capabilities to remain relevant as a wireless standard.
Bluetooth is a wireless technology standard for exchanging data over short distances. It allows for data transmission between devices like computers, phones, and other peripherals. Bluetooth operates using radio waves in the unlicensed 2.4GHz spectrum in a process called frequency-hopping spread spectrum. It establishes short-range radio links called piconets that allow for both point-to-point and point-to-multipoint connections.
Bluetooth is an open wireless technology standard used for exchanging data over short distances between devices like phones, laptops, headphones, smartwatches, and more. It allows for low-power wireless connections within a range of around 10 meters. Bluetooth specifications and profiles define how devices communicate and what applications they support, allowing different devices to connect and exchange information in a standardized way.
Bluetooth is a wireless technology that allows short-range data transmission between electronic devices like phones, laptops, and other portable devices. It was invented in 1994 by Ericsson to eliminate cables and wires between devices. Bluetooth uses radio waves to transmit data over short distances at high speeds while consuming very little power. Common Bluetooth devices include headphones, car speakerphones, printers, and computer keyboards. The technology provides cable-free connectivity and mobility while also having some disadvantages like slow data transfer speeds and limited range. Future versions of Bluetooth aim to improve security, capabilities, data rates, power efficiency, and transmission range.
AN EXPANDED BLUETOOTH NETWORK-A SOLUTION TO THE SHORT RANGE BLUETOOTH COMMUNI...cscpconf
Bluetooth is a short range, low power, low cost wireless communication technology designed to connect phones, laptops and PDAs. The greater availability of portable devices with Bluetooth connectivity imposes wireless connection between enabled devices. This paper considers the problems of Bluetooth communication and also proposes a new expanded network to overcome the basic limitation of Bluetooth devices that is the range constraint. This creates a network of devices that will include laptops, set top devices and also mobile phones. The main purpose of this proposal is to establish a network will enable the users to communicate outside the range without any range constraint.
Bluetooth is a wireless technology developed in 1994 that allows electronic devices such as computers, phones, and other home appliances to connect without wires. It uses short-range radio transmissions to communicate and establish connections between devices within about 30 feet of each other. Bluetooth aims to eliminate cable clutter and enable easy data transfer and synchronization between devices. While it faces some security issues, Bluetooth's ability to connect devices wirelessly positions it to become widely adopted in homes and businesses.
This document provides an overview of Bluetooth technology. It defines Bluetooth as a short range wireless technology originally developed for exchanging data over short distances between devices. The document then discusses the history, characteristics, working, security features, advantages, disadvantages, applications and future of Bluetooth. It concludes that Bluetooth eliminates cables and provides a low power, low range, low cost wireless network standard with a bright future as improvements continue to be made.
A Novel Solution To The Short Range Bluetooth Communication pijans
Bluetooth is developed for short range communication. Bluetooth Devices are normally having low power
and low cost. This is a wireless communication technology designed to connect phones, laptops and PDAs.
The greater availability of portable devices with Bluetooth connectivity imposes wireless connection
between enabled devices. On an average the range of Bluetooth devices is about 10 meters.The basic
limitation of the Bluetooth communication is this range limitation. In this paper I have studied the
limitations of Bluetooth communication and consider range constraint as the major limitation. I propose a
new expanded Blue tooth network to overcome the range constraint of Bluetooth device. This creates a
network of Bluetooth enabled devices that will include laptops, set top devices and also mobile phones. The
main purpose of this proposal is to establish a network will enable the users to communicate outside the
range without any range constraint.
Bluetooth is a short-range wireless technology that allows data exchange between devices like phones, laptops, and printers. It was developed in 1994 and uses radio waves in the 2.4 GHz band to connect devices within a 10-100 meter range. Bluetooth devices can form ad-hoc networks called piconets to share data and voice signals. While convenient, Bluetooth has limitations like low data rates, short range, and potential security issues if not configured properly. It finds applications in wireless headsets, car infotainment systems, and wireless speakers. Future developments aim to improve bandwidth, reduce interference, and streamline connection setup while maintaining compatibility.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...Neo4j
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#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
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Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile.
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Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
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1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
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See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
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Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
Mind map of terminologies used in context of Generative AI
Bluetooth technology
1. Bluetooth Technology
1
Abstract
Bluetooth is a new short-range wireless technology designed to enable wireless communication
between diverse devices. It is gaining increasing popularity and acceptance in the world today.
There is a growing body of research on the subject, but very few, if any of the analyses, provided
balanced view of the technology which describes its pros and cons and implications for
businesses. This paper attempts to critically analyze the Bluetooth technology from a various
perspectives. It begins with a description of the technology in terms of its hardware, software,
and network infrastructure. Then it addresses the related issues of interference, security, and
reliability. This microanalysis is followed by a larger macro analytical view, which includes the
advantages of this technology, its role in the global third generation (3G) wireless scheme,
health/safety issues, and business implications. It concludes with the applications of Bluetooth
and its future potential Bluetooth is a wireless communication protocol. Since it's a
communication protocol, you can use Bluetooth to communicate to other Bluetooth-enabled
devices. In this sense, Bluetooth is like any other communication protocol that you use every
day, such as HTTP, FTP, SMTP, or IMAP. Bluetooth has a client-server architecture; the one
that initiates the connection is the client, and the one who receives the connection is the server.
Bluetooth is a great protocol for wireless communication because it's capable of transmitting data
at nearly 1MB/s, while consuming 1/100th of the power of Wi-Fi. We discuss criteria for
different types of scatternets and establish general models of scatternet topologies. Then we
review the state-of-the-art approaches with respect to Bluetooth scatternet formation and contrast
them.
2. Bluetooth Technology
2
Introduction to Bluetooth Technology
Bluetooth is a radio frequency specification for short range, point to point and point to multi
point voice and data transfer. Bluetooth technology facilitates the replacement of cables normally
used to connect one device to another by a short range radio link. With the help of blue tooth we
can operate our keyboard and mouse without direct connection of CPU. Printers, fax machines,
headphone, mouse, keyboard or any other digital devices can be part of Bluetooth system.
In spite of facilitating the replacement of cables, Bluetooth technology works as an universal
medium to bridge the existing data networks, a peripheral interface for existing devices and
provide a mechanism to form short ad hoc network of connected devices away from fixed
network infrastructures.
Due to their independence on short range radio link, Bluetooth devices do not require a line of
site connection in order to communicate. Therefore a computer can print information on a printer
if printer is in inside the room. Two blue tooth devices can talk to each other when they come
within range of 10 meters to each other.
Bluetooth technology represents an opportunity for the industry to deliver wireless solutions that
are ubiquitous across a broad range of devices. Bluetooth wireless technology is a cable
replacement technology that provides wireless communication between portable devices, desktop
devices and peripherals. It is used to swap data and synchronize files between devices without
having to connect each other with cable. The wireless link has a range of 10m which offers the
user mobility. This technology can be used to make wireless data connection to conventional
local area networks (LAN) through an access point. There is no need for the user to open an
application or press button to initiate a process. Bluetooth wireless technology is always on and
runs in the background. Bluetooth devices scan for other Bluetooth devices and when these
devices are in range they start to exchange messages so they can become aware of each others
capabilities. These devices do not require a line of sight to transmit data with each other.
Within a few years about 80 percent of the mobile phones are expected to carry the Bluetooth
chip. The Bluetooth transceiver operates in the globally available unlicensed ISM radio band of
2.4GHz. The ISM bands include frequency range at 902MHz to 928MHz and 2.4GHz to
2.484GHZ which do not require operator license from a regulatory agency. This means that
Bluetooth technology can be used virtually anywhere in the world. Another type of wireless
technology that is being used nowadays is infrared signals. The choice of using either one of the
wireless technology will depend on the application for which it is being used. Bluetooth is an
economical, wireless solution that is convenient, reliable, easy to use and operates over a longer
distance than infrared. The initial development started in 1994 by Ericsson. Bluetooth now has a
special interest group (SIG) which has 1800 companies worldwide. Bluetooth technology
enables voice and data transmission in a short-range radio.
3. Bluetooth Technology
3
There is a wide range of devises which can be connected easily and quickly without the need for
cables. Soon people world over will enjoy the convenience, speed and security of instant wireless
connection. Bluetooth is expected to be embedded in hundreds of millions mobile phones, PCs,
laptops and a whole range of other electronic devices in the next few years. This is mainly
because of the elimination of cables and this makes the work environment look and feel
comfortable and inviting.
Why it’s name is Bluetooth?
While many new technologies bear technical names, like RS-232 or IEEE
802.11b, Bluetooth, the wireless technology, is different.
Bluetooth was named for the 10th Century Viking king Harald Blatand (A.K.A., Bluetooth) who
peacefully united all the tiny island kingdoms of Denmark, southern Sweden, and southern
Norway into one country In keeping with its namesake, Bluetooth, the new low-cost radio
technology, is designed to unite or connect all different types of devices to effectively work as
one. By uniting devices, Bluetooth eliminates the need for cabling in a wide range of products,
including cellular phones, PCs, headphones, audio equipment, printers, and many more.
Bluetooth Definitions
Piconet: Devices connected in an ad hoc fashion that is, not requiring predefinition and
planning, as with a standard network. Two to eight devices can be networked into a piconet.
It is a peer network that is, once connected each device has equal access to the others.
However, one device is defined as master, and the others as slaves.
Scatternet: Several piconets may form a larger scatternet with each piconet maintaining
independence.
Master unit: The master in a piconet whose clock and hopping sequence synchronizes the
other devices.
Slave unit: Devices in a piconet that are not the master.
MAC address: Three bit address that distinguishes each unit in a piconet.
Parked units: Piconet devices that are synchronized but don't have MAC addresses.
Sniff and hold mode: Power-saving mode of a piconet device.
4. Bluetooth Technology
4
How Bluetooth Technology Work
BLUETOOTH PROTOCOL ARCHITECTURE:
As the report is designed mainly for the spread spectrum techniques course, the protocols
in the lower level are described more extensively and the upper layer protocols are just
mentioned with a very brief description.
Moreover, one should note that the upper layer protocols are totally dependent on the
lower level protocols whereas the lower level protocols can function independently even with a
totally different set of upper protocols.
Bluetooth Radio: The Bluetooth Radio (layer) is the lowest defined layer of the Bluetooth
specification. It defines the requirements of the Bluetooth transceiver device operating in the
2.4GHz ISM band. The Bluetooth air interface is based on three power classes,
Power Class 1: designed for long range (~100m), max output power of 20 dBm,
Power Class 2: ordinary range devices (~10m), max output power of 4 dBm,
Power Class 3 short range devices (~10cm), with a max output power of 0 dBm.
5. Bluetooth Technology
5
The radio uses Frequency Hopping to spread the energy across the ISM spectrum in 79 hops
displaced by 1MHz, starting at 2.402GHz and stopping at 2.480GHz.Some countries use the 79
RF channels whereas countries like Japan use 23 channels. Currently, the SIG is working to
harmonize this 79-channel radio to work globally and has instigated changes within Japan,
Spain, and other countries. Also, the Bluetooth radio module uses GFSK (Gaussian Frequency
Shift Keying) where a binary one is represented by a positive frequency deviation and a binary
zero by a negative frequency deviation. BT is set to 0.5 and the modulation index must be
between 0.28 and 0.35. The receiver must have a sensitivity level for which the bit error rate
(BER) 0.1% is met. For Bluetooth this means an actual sensitivity level of -70dBm or better.
Baseband: The Baseband is the physical layer of the Bluetooth. It manages physical channels
and links apart from other services like error correction, data whitening, hop selection and
Bluetooth security. As mentioned previously, the basic radio is a hybrid spread spectrum radio.
Typically, the radio operates in a frequency-hopping manner in which the 2.4GHz ISM band is
broken into 79 1MHz channels that the radio randomly hops through while transmitting and
receiving data. A piconet is formed when one Bluetooth radio connects to another Bluetooth
radio.
Both radios then hop together through the 79 channels. The Bluetooth radio system supports a
large number of piconets by providing each piconet with its own set of random hopping patterns.
Occasionally, piconets will end up on the same channel. When this occurs, the radios will hop to
a free channel and the data are retransmitted (if lost). The Bluetooth frame consists of a transmit
packet followed by a receive packet. Each packet can be composed of multiple slots (1, 3, or 5)
of 625us. A typical single slot frame typically hops at 1,600 hops/second. Multi-slot frames
allow higher data rates because of the elimination of the turn-around time between packets and
the reduction in header overhead.
LMP: The Link Manager Protocol is used by the Link Managers (on either side) for link set-up
and control.
HCI: The Host Controller Interface provides a command interface to the Baseband Link
Controller and Link Manager, and access to hardware status and control registers.
L2CAP: Logical Link Control And adaptation Protocol supports higher level protocol
multiplexing, packet segmentation and reassembly, and the conveying of quality of service
information.
RFCOMM: The RFCOMM protocol provides emulation of serial ports over the
L2CAPprotocol. The protocol is based on the ETSI standard TS 07.10.
6. Bluetooth Technology
6
SDP: The Service Discovery Protocol provides a means for applications to discover which
services are provided by or available through a Bluetooth device. It also allows applications to
determine the characteristics of those available services. The technology of Bluetooth centers
around 9mm x 9mm microchip, which functions as a low cost and short range radio link.
Bluetooth Technology provide a 10 meter personal bubble that support simultaneous
transmission of both voice and data for multiple devices. Up to 8 devices can be connected in a
piconet, and to 10 piconets can exist within the 10 meter bubble. Each piconet support up to 3
simultaneous full duplex voice devices. The gross data rate is 1 Mb/s, but the actual data rate are
432 kbps for full Duplex transmission,721/56kbps for asymmetric transmission, and 384 kbps for
tms 2000 transmission. Bluetooth wireless technology is designed to be as secure as a wire with
up to 128-bit public/private key authentication, and streaming cipher up to 64 bit based on a5
security.
Transmission types and rates :
The baseband (single channel per line) protocol combines circuit and packet switching. To
assure that packets do not arrive out of order, slots (up to five) can be reserved for
synchronous packets. As noted earlier, a different hop signal is used for each packet. Circuit
switching can be either asynchronous or synchronous. Up to three synchronous (voice) data
channels, or one synchronous and one asynchronous data channel, can be supported on one
channel. Each synchronous channel can support a 64 Kb/s transfer rate, which is fully
adequate for voice transmissions. An asynchronous channel can transmit as much as 721
Kb/s in one direction and 57.6 Kb/s in the opposite direction. It is also possible for an
asynchronous connection to support 432.6 Kb/s in both directions if the link is symmetric.
Radio frequency and spectrum hopping :
What if there's a lot of radio noise? Won't that interfere with Bluetooth connections? As a
rule, the answer is no. It is designed to use fast acknowledgement and frequency hopping,
which will make connections robust. It is packet-based, and will jump to a new frequency
after each packet is received, which not only helps limit interference problems, but also adds
to security. Data rates are one megabyte/second, including headers. Full duplex transmissions
(both directions at once) are accomplished via time division multiplexing.
The Bluetooth radio chip functions at 2.4 gigahertz, which is in the unlicensed ISM
(Industrial Scientific Medical) band. It separates the 2.4 gigahertz frequency band into 79
hops one megahertz apart, starting with 2.402 and ending with 2.480 (though this bandwidth
is narrower in Japan, France, and Spain). This spread spectrum is used to hop from one
channel to another, pseudo-randomly, which adds a strong layer of security. Up to 1600 hops
7. Bluetooth Technology
7
per second can be made. The standard frequency range is 10 centimeters to 10 meters, and
can be extended to at least 100 meters by increasing transmission power.
Data transmission:
Data can be transmitted both synchronously and asynchronously. The Synchronous
Connection Oriented (SCO) method is used primarily for voice, and Asynchronous
Connectionless (ACL) is primarily for data. Within a piconet, each master-slave pair can use
a different transmission mode, and modes can be changed at any time. Time Division Duplex
(TDD) is used by both SCO and ACL, and both support 16 types of packets, four of which
are control packets that are the same in each type. Because of the need for smoothness in data
transmission, SCO packets are generally delivered via reserved intervals, that is, the packets
are sent in groups without allowing other transmissions to interrupt. SCO packets can be
transmitted without polling by the sending unit. ACL links support both symmetric and
asymmetric transmissions.
Bandwidth is controlled by the master unit, which determines how much of the total each
slave unit can use. Slaves cannot transmit data until they have been polled by the master, and
the master can broadcast messages to the slave units via ACL link.
Network arrangement:
Bluetooth network arrangements (topology) can be either point-to-point or point-to-multipoint.
Any unit in a piconet can establish a connection to another piconet to form a scatternet. See
the figure, which diagrams a scatternet in which piconet A, which consists of four units, is
connected to piconet B, consisting of two units. Note that the master unit of A is not the link
Bluetooth network arrangements (topology) can between the two piconets.
8. Bluetooth Technology
8
Error correction and security:
on code (FEC), 2/3 rate forward error correction code FEC, and automatic repeat request
(ARQ). The FEC methods are designed to reduce the number of retransmissions. However,
the over a Three error correction techniques have been defined: 1/3 rate forward error
corrected significantly slows transmissions, so is generally not used in relatively error-free
environments, with the exception of packet headers. The ARQ scheme requires that the
header error and cyclic redundancy checks are okay. When they are an acknowledge is sent.
When they aren't, the data is resent.
Security is provided in three ways: through pseudo-random frequency band hops,
authentication, and encryption. Frequency band hops make it difficult for anyone to
eavesdrop. Authentication allows a user to control connectivity to only devices specified.
Encryption uses secret key lengths of 1, 40, and 64 bits. The quality of security is excellent
for most applications. However, it is not the highest level available, and for those users who
require it, the suggestion is to investigate separate network transfer protocols and security
software.
Bluetooth Special Interest group (SIG)
Bluetooth special group is group of companies working together to define, developed
promote an open royalty free specification for seamless wireless connectivity and cable
replacement for a wide variety of mobility-enhancing devices. The original charter of the SIG is
to monitor the technical development of a short range radio and to create an open global
standard. It prevent the technology from becoming the property of any single company.
In developing the Bluetooth specification, the SIG is strictly adhering to some basic principles
that that can be summed up in five key words: freedom, security, simplicity, versatility and
reliability. These keywords are the foundation of Bluetooth technology. To be Bluetooth
certified, a device must pass interoperability testing by the Bluetooth Special Interest Group thus
assuring that products meeting the specification will be able to interact with all other Bluetooth-
certified products and with the Internet.
In february1998, the Special Interest Group (SIG) was formed. The founding SIG member are
Ericsson, Intel, IBM, Nokia & Toshiba. Since then over 2000 adopter have joined including
Compaq, Lucent, Motorola and 3com.
9. Bluetooth Technology
9
Bluetooth Characteristics:
These are the features of the Bluetooth technology:
It separates the frequency band into hops. This spread spectrum is used to hop from one
channel to another, which adds a strong layer of security.
Up to eight devices can be networked in a piconet.
Signals can be transmitted through walls and briefcases, thus eliminating the need for line-of-
sight.
Devices do not need to be pointed at each other, as signals are omni-directional.
Both synchronous and asynchronous applications are supported, making it easy to implement
on a variety of devices and for a variety of services, such as voice and Internet.
Governments worldwide regulate it, so it is possible to utilize the same standard wherever
one travels.
Bluetooth in the Future
What is the future direction of the Bluetooth standard?
At this time, we anticipate the Bluetooth SIG to evolve the Bluetooth technology to provide
greater bandwidth & distances, thus increasing the potential platforms & applications used in the
emerging personal area-networking marketplace.
What is the future of Bluetooth?
Bluetooth is a continually expanding technology. There are plans to add many new application
profiles. With over 1800 companies working on Bluetooth, the future could not be brighter. With
a strong special interest group behind Bluetooth, the standardization of the application profiles is
almost assured.
According to market researchers, Cahners In-Stat Group, it is anticipated that as many as 670
million products will have Bluetooth built-in by the year 2005.
Will the speed of Bluetooth increase?
Some members of the Bluetooth SIG such as Sony & Eastman Kodak are interested in seeing the
speed of Bluetooth increasing for applications such as streaming video. Proposals are under
consideration but it is not clear when products based on any of the proposals would be available
10. Bluetooth Technology
10
ADVANTAGES OF BLUETOOTH TECHNOLOGY
Bluetooth devices are wireless
Bluetooth technology is inexpensive
Bluetooth is automatic
Share voice and data
Low energy consumption
Accessible from anywhere
Easy to use
DISADVANTAGES OF BLUETOOTH TECHNOLOGY
Relatively short range
Less secure
Interference with other devices
Mediocre Data rates
Bluetooth internet connection gets slow sometimes
APPLICATIONS
Smart Home
Homes equipped with Bluetooth devices may be able to recognize the arrival of its bonafide
residents and unlock the door on their arrival. The device will also adjust heat to a preset
temperature. While this is happening, the data from the individual’s PDA may be exchanged
with the home electronic board, and the family calendar is updated
to reflect the scheduled activities in the office.
The Internet Bridge
An extension of this model could be a mobile computer that allows surfing the Internet
irrespective of the location of the user, and regardless of whether the user is cordlessly connected
through a mobile phone (cellular) or through a wire line connection (e.g. PSTN, ISDN, LAN,
xDSL).
Automatic Check-in:
Hotels are testing, or plan to test, services that allow guests to check in, unlock room doors and
even control room temperature with handheld devices equipped with Bluetooth Technology.
11. Bluetooth Technology
11
The Bluetooth enabled mobile phone or the PDA can present the electronic ticket to the airline
system without one having to go through the queue at the check-in counters. The airline's on-line
system performs the identification via the ID-tag feature built into the mobile phone or the PDA
and confirms the reserved seat.
The Three-in-one Phone
With Bluetooth support, one handset will be able to provide multiple functionality. When at
home, the phone functions as a cordless phone, connected to the fixed line. When on the move, it
functions as a mobile phone connected to the mobile network. Additionally, when the phone
comes within range of another mobile phone with built-in Bluetooth technology, it functions as a
walkie-talkie.
Summary
A new global standard for data and voice
Eliminates Cables.
Low Power, Low range, Low Cost network devices.
Bluetooth seems to have a bright future after reviewing its benefits and wide use.
Further improvements are planned to be made in
Data Rates
Power Reduction
Range