Communication channels
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In this presentation , I have discussed about various communication channels used in the computer networks.
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Data communication and communication Media
Data communication involves transmitting data from one location to another using transmission media. It requires a message, sender, receiver, medium/communication channel, and encoder/decoder. Communication media refers to the means of delivering and receiving data, including wired media like coaxial cable, twisted pair cable, and fiber optic cable, and wireless media like microwaves, satellite, Wi-Fi, and Bluetooth. Wired communication uses physical connections like cables while wireless uses technologies like radio frequencies.
RF signal generation and wireless transmission using PANDA and Add/drop systems
RF signal generation and wireless transmission using PANDA and Add/drop systemsUniversity of Malaya (UM)
The radio frequency (RF) signal generation and its modulation is the basic building
block of wireless communication system. High frequency RF signals are desired in high speed
systems but traditional methods to generate high frequency RF signals suffered from electronic
devices data processing rate. On the other hand, spectral efficient modulation is also played vital
rule in the high speed wireless communication where orthogonal frequency-division multiplexing
(OFDM) transmission is mostly preferred. Due to the challenges regarding to electronic devices,
optically generation and processing of RF OFDM signals has gained considerable attention. In this
work microring resonator (MRR) system is used to implement all optically generation and
modulation of RF OFDM signal. The MRRs can be used as filter devices where generation of high
frequency (GHz) soliton signals as single and multi-carrier can be performed using suitable system
parameters. The results show the generation of 64 multi-carriers evenly spaced in the range from
54.09 GHz to 55.01 GHz to generate OFDM signal all optically, where the RF modulation was
achieved by two optical carriers with free spectral range (FSR)=5GHz.Communication channel
A communication channel is a path through which information is transmitted between two points. There are two types of communication channels: guided media and unguided media. Guided media uses physical connections like cables to directly link devices, and includes twisted pair cables, coaxial cables, and fiber optic cables. Unguided media transmits signals through air without physical connections, and includes technologies like microwaves, communication satellites, broadcast radio, cellular radio, and infrared. The document then provides details on several specific communication channel technologies.
Communication channel
This document discusses different types of communication channels, which are the paths that allow information to be transmitted from one place to another. There are two main types of communication channels: guided media and unguided media. Guided media uses physical transmission paths like fiber optic cables and coaxial cables to transmit data within a bounded system. Unguided media transmits data through wireless means like radio waves, microwaves, and satellites without a physical path or boundary. The document provides examples and characteristics of different guided and unguided communication channel technologies.
Chapter 3
A computer network connects devices together through communication devices and transmission media. TCP/IP is a common network protocol that defines how messages are routed between devices. Common network topologies include bus, star, and ring configurations. Hardware like network interface cards, hubs, routers, and switches facilitate device connections. Wireless technologies like WiFi and Bluetooth allow for device communication without cables.
introduction to data comunication
This document provides an introduction to data communications and networking concepts. It discusses the history of telecommunications and data communication. The key aspects covered include the OSI reference model, TCP/IP protocol suite, network topologies, transmission media such as twisted pair, coaxial cable, fiber optics and wireless technologies. Application areas such as email, e-commerce and wireless applications are also summarized. The document concludes with an overview of data communication careers.
ISDD Transmission Media
This document discusses different types of transmission media used to carry communication signals between computer systems. It describes wired connections like unshielded twisted pair cables, coaxial cable, and fiber optic cables, as well as wireless transmission. Each type of media is compared based on factors like range, bandwidth, advantages, and disadvantages.
Data Communication (Lecture) IT Slide # 2
This document provides an overview of data communication concepts presented by lecturer Muhammad Shoaib. It defines data communication as the exchange of data between two devices via transmission. The key components of data communication are identified as the message, sender, receiver, transmission medium, and protocol. Different data types, communication modes (simplex, half-duplex, duplex), network classifications (point-to-point, multipoint), communication channels (guided media like twisted pair, coaxial cable, optical fiber and unguided media like terrestrial microwave, satellite, broadcast radio, infrared), and the role of communication protocols are described.
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Data communication and communication Media
Data communication involves transmitting data from one location to another using transmission media. It requires a message, sender, receiver, medium/communication channel, and encoder/decoder. Communication media refers to the means of delivering and receiving data, including wired media like coaxial cable, twisted pair cable, and fiber optic cable, and wireless media like microwaves, satellite, Wi-Fi, and Bluetooth. Wired communication uses physical connections like cables while wireless uses technologies like radio frequencies.
RF signal generation and wireless transmission using PANDA and Add/drop systems
RF signal generation and wireless transmission using PANDA and Add/drop systemsUniversity of Malaya (UM)
The radio frequency (RF) signal generation and its modulation is the basic building
block of wireless communication system. High frequency RF signals are desired in high speed
systems but traditional methods to generate high frequency RF signals suffered from electronic
devices data processing rate. On the other hand, spectral efficient modulation is also played vital
rule in the high speed wireless communication where orthogonal frequency-division multiplexing
(OFDM) transmission is mostly preferred. Due to the challenges regarding to electronic devices,
optically generation and processing of RF OFDM signals has gained considerable attention. In this
work microring resonator (MRR) system is used to implement all optically generation and
modulation of RF OFDM signal. The MRRs can be used as filter devices where generation of high
frequency (GHz) soliton signals as single and multi-carrier can be performed using suitable system
parameters. The results show the generation of 64 multi-carriers evenly spaced in the range from
54.09 GHz to 55.01 GHz to generate OFDM signal all optically, where the RF modulation was
achieved by two optical carriers with free spectral range (FSR)=5GHz.Communication channel
A communication channel is a path through which information is transmitted between two points. There are two types of communication channels: guided media and unguided media. Guided media uses physical connections like cables to directly link devices, and includes twisted pair cables, coaxial cables, and fiber optic cables. Unguided media transmits signals through air without physical connections, and includes technologies like microwaves, communication satellites, broadcast radio, cellular radio, and infrared. The document then provides details on several specific communication channel technologies.
Communication channel
This document discusses different types of communication channels, which are the paths that allow information to be transmitted from one place to another. There are two main types of communication channels: guided media and unguided media. Guided media uses physical transmission paths like fiber optic cables and coaxial cables to transmit data within a bounded system. Unguided media transmits data through wireless means like radio waves, microwaves, and satellites without a physical path or boundary. The document provides examples and characteristics of different guided and unguided communication channel technologies.
Chapter 3
A computer network connects devices together through communication devices and transmission media. TCP/IP is a common network protocol that defines how messages are routed between devices. Common network topologies include bus, star, and ring configurations. Hardware like network interface cards, hubs, routers, and switches facilitate device connections. Wireless technologies like WiFi and Bluetooth allow for device communication without cables.
introduction to data comunication
This document provides an introduction to data communications and networking concepts. It discusses the history of telecommunications and data communication. The key aspects covered include the OSI reference model, TCP/IP protocol suite, network topologies, transmission media such as twisted pair, coaxial cable, fiber optics and wireless technologies. Application areas such as email, e-commerce and wireless applications are also summarized. The document concludes with an overview of data communication careers.
ISDD Transmission Media
This document discusses different types of transmission media used to carry communication signals between computer systems. It describes wired connections like unshielded twisted pair cables, coaxial cable, and fiber optic cables, as well as wireless transmission. Each type of media is compared based on factors like range, bandwidth, advantages, and disadvantages.
Data Communication (Lecture) IT Slide # 2
This document provides an overview of data communication concepts presented by lecturer Muhammad Shoaib. It defines data communication as the exchange of data between two devices via transmission. The key components of data communication are identified as the message, sender, receiver, transmission medium, and protocol. Different data types, communication modes (simplex, half-duplex, duplex), network classifications (point-to-point, multipoint), communication channels (guided media like twisted pair, coaxial cable, optical fiber and unguided media like terrestrial microwave, satellite, broadcast radio, infrared), and the role of communication protocols are described.
What is Wireless Communication or Unguided Transmission Media
What is Wireless Communication or What is Unguided Media | A Complete Introduction to the Wireless Communication Systems
In layman language it is communication in which information is transferred between two or more points without any wire. Transmitting/receiving voice and data using electromagnetic waves in open space. In wireless Communication the information from sender to receiver is carried over a well defined channel. Each channel has a fixed frequency bandwidth & capacity(bit rate) & Different channels can be used to transmit information in parallel and independently.
This video explains what Wireless Communication is & and why it's faster, effective & doesn't eat up our valuable IT resources as compare to Wired Communication or Guided Media
Watch Video Here : https://youtu.be/xs05l4GEbZA
Wireless Communication : https://www.slideshare.net/AhsanRahim1/wireless-communication-or-unguided-transmission-media/
Learn more about Wireless Communication at : https://www.slideshare.net/ahsanrahim1
Cloud Computing in 2017 : https://www.youtube.com/watch?v=1OuaAgvYWQo
Software Development Life Cycle Models : https://www.youtube.com/watch?v=3Lxnn0O3xaM
Subscribe to Science Villa on YouTube for exclusive updates on new videos : https://www.youtube.com/channel/UCKVvceV1RGXLz0GeesbQnVg
Wired Transmission Media
Wired transmission media includes twisted pair cables, coaxial cables, and optical fiber cables. It provides physically constrained signal propagation with little interference. Wired networks are highly compatible, reliable, secure, and can transmit data at faster speeds compared to wireless networks. However, wireless networks have become more prevalent in everyday devices due to their convenience over wired networks.
Communication channels by veerendra
The document discusses different types of communication channels including wired channels like twisted pair cables, coaxial cables, and optical fiber cables. It also discusses wireless channels such as terrestrial microwave communication, satellite communication, and underwater acoustic channels. Additionally, it covers storage channels such as magnetic tapes and magnetic disks that are used to store computer data. The key channels covered are wired channels using different mediums, wireless channels that transmit data through free space, and magnetic storage channels.
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Circuit-switched telephone systems use dedicated connections for each call, while packet-switched networks break communication into packets that are sent independently. Satellite phones connect to orbiting satellites from anywhere in the world, while fixed wireless systems provide local connectivity without cables or satellite by using radio frequencies. Data networks include personal, local, wireless local, metropolitan, wide area, virtual private, and campus networks that connect devices over various physical distances to share information.
Communication channels and its types
Communication channels transfer information from one place to another. Channels can be guided media like twisted pair cable, coaxial cable, and fiber optic cable which have applications in phone lines and local networks. Unguided media include microwaves, satellites, radio waves and infrared which propagate wirelessly but can have limitations like line of sight. Each channel has different characteristics, benefits, and applications for data transmission over various speeds and distances.
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The document outlines the history and types of mobile ad hoc networks (MANETs). It discusses how the earliest MANET, called PRNET, was developed in the 1970s by DARPA. It grew out of early packet radio networks. MANET research increased in the 1990s with the rise of wireless networking. The document also covers MANET applications in military, emergency response, education, and home/entertainment settings and challenges like hidden and exposed terminal problems.
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This document discusses ad-hoc sensor networks. It notes that ad-hoc networks are decentralized wireless networks that do not rely on preexisting infrastructure, with each node participating in routing by forwarding data. The networks are self-configuring and scalable, allowing additional nodes to be added. They see applications in military operations, emergency response, home networks, and environmental monitoring where infrastructure is not present or mobility is required.
Tranimission Media
This document discusses different types of transmission media that can be used to transmit encoded data as energy, including copper wires, glass fibers, radio waves, satellites, and lasers. Copper wire is a mature technology that is inexpensive but has limited transmission speeds. Glass fiber can transmit data at higher speeds over longer distances but is more expensive. Radio waves, microwaves, and infrared can transmit data without a physical connection and are used for mobile and wireless transmissions. Satellites in different types of orbits can transmit data over long distances around the globe. The best transmission medium depends on the needs of speed, distance, mobility, and cost for each application.
Introduction To Computer Network
Networking • Computer network A collection of computing devices that are connected in various ways in order to communicate and share resources Usually, the connections between computers in a network are made using physical wires or cables However, some connections are wireless, using radio waves or infrared signals.
Telecommunication and networks
This document defines basic concepts of telecommunications and networks. It describes different types of communication including synchronous, where the receiver gets the message immediately, and asynchronous, where there is a delay. It also defines telecommunications as electronic communication of signals like telephone, radio and television. The document outlines different types of telecommunications media including twisted pair cable, coaxial cable, fiber optic cable, microwave transmission, and wireless transmission. It provides details on characteristics of each type of media such as speed and applications.
Types of networks 23
What is a Computer Network?
Collection of autonomous computers interconnected by a single technology is called computer network.
Two computers are set to be interconnected if they are able to exchange information.
Connection can be through a copper wire, fiber optics, microwaves, infrared or satellite.
Telecommunications
Telecommunication involves the transmission of signals over a distance for communication purposes using technology. It includes systems like telephony, radio, television, and computer networks. Telecommunication networks connect terminal nodes through transmission links and use circuit switching, message switching, or packet switching to route signals through the network. Common telecommunication networks include telephone networks, computer networks, the Internet, and radio networks.
Assignment2dc
This document provides an overview of key concepts in data communication including:
1. The five components of a data communication system are the sender, receiver, message, transmission medium, and protocol.
2. Data flow can be simplex, half-duplex, or full-duplex depending on whether transmission is unidirectional or bidirectional.
3. Signals can be analog or digital, with digital signals taking on discrete values like 0 and 1.
4. Common networking devices include modems, hubs, switches, and routers which facilitate data transmission and routing.
5. Network addressing identifies nodes and is implemented through physical MAC addresses and logical IP addresses which are organized into classes.
Computer network
A computer network is a set of connected computers. Computers on a network are called nodes. The connection between computers can be done via cabling, most commonly the Ethernet cable, or wireless through radio waves. Connected computers can share resources, like access to the Internet, printers, file servers, and others. A network is a multipurpose connection, which allows a single computer to do more.
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Telecommunications and computer networks
This document discusses telecommunications and computer networks. It defines communication, telecommunications, and data communication. The objectives of communication networks are to offer timely information exchange, reduce effort and costs, and support improved management. Networks use simplex, half-duplex, and full-duplex transmission modes. Analog transmission sends continuous signals while digital transmission sends discrete values. Asynchronous transmission sends characters independently while synchronous transmission sends data in blocks. The telecommunication network model includes end user terminals, telecommunication processors, channels, computers, software, and various components that connect networks. [/SUMMARY]
Wireless Technology_Tecstride
Wireless technology has enable faster transmission of data and convenient communication among people separated by large distances.
For more detail you can visit : http://bit.ly/1TgPUr3
Network cabling
What is Network Cabling?
Cable is the medium through which information usually moves from one network device to another.
There are several types of cable which are commonly used with LANs. In some cases, a network will utilize only one type of cable, other networks will use a variety of cable types. The type of cable chosen for a network is related to the network's topology, protocol, and size.
Assignment on class 2
A Metropolitan Area Network (MAN) is a computer network that spans a larger area than a local area network (LAN), such as a city or college campus. A MAN can cover distances from a few miles to tens of miles and examples include cable TV networks and telephone networks providing high-speed internet connections over DSL lines.
Network Concepts
This document discusses telecommunication systems and computer networks. It defines a telecommunication system as transmitting sound, images, text and video electronically using channels like phones or satellites. Key components are servers, workstations, devices, and channels. A network connects computers and devices to share data, hardware and software. Components include servers, workstations, devices, channels and an operating system. A modem transforms digital signals to analog for transmission. Networks allow sharing hardware, software and information, and sending information remotely. The largest network is the Internet, which started as a US defense network and later connected universities. Network types include LAN, WLAN, WAN and MAN with different geographic ranges. Topologies describe how computers connect, including bus
Data communication CSEC
Communication channels can be either guided (wired) or unguided (wireless) and are used to transmit data between a transmitter and receiver. Guided channels include twisted pair cables, coaxial cables, and optical fibers which have different bandwidth and transmission properties. Unguided channels include terrestrial microwave, satellite, and broadcast radio which propagate signals through the air. The type of channel used depends on factors like bandwidth needs, data rate, distance, and number of receivers.
Communication and networking for class 12.pptx
Network and Communication refer to the interconnected systems and devices that enable the transfer of data and information between various endpoints. The main components of a network and communication system include hardware devices such as computers, routers, switches, and modems, and software protocols that govern the flow of data between these devices.
Networking and telecommunication
This document discusses networking and telecommunication concepts. It defines communication, telecommunication, and data communication. It describes the components of data communication including the message, sender, receiver, medium, and protocols. It then explains different transmission modes such as simplex, half-duplex, and full-duplex. It also discusses bandwidth, communication mediums including guided and unguided mediums, and computer networks. Finally, it covers network topologies, devices, and types of networks.
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What is Wireless Communication or Unguided Transmission Media
What is Wireless Communication or What is Unguided Media | A Complete Introduction to the Wireless Communication Systems
In layman language it is communication in which information is transferred between two or more points without any wire. Transmitting/receiving voice and data using electromagnetic waves in open space. In wireless Communication the information from sender to receiver is carried over a well defined channel. Each channel has a fixed frequency bandwidth & capacity(bit rate) & Different channels can be used to transmit information in parallel and independently.
This video explains what Wireless Communication is & and why it's faster, effective & doesn't eat up our valuable IT resources as compare to Wired Communication or Guided Media
Watch Video Here : https://youtu.be/xs05l4GEbZA
Wireless Communication : https://www.slideshare.net/AhsanRahim1/wireless-communication-or-unguided-transmission-media/
Learn more about Wireless Communication at : https://www.slideshare.net/ahsanrahim1
Cloud Computing in 2017 : https://www.youtube.com/watch?v=1OuaAgvYWQo
Software Development Life Cycle Models : https://www.youtube.com/watch?v=3Lxnn0O3xaM
Subscribe to Science Villa on YouTube for exclusive updates on new videos : https://www.youtube.com/channel/UCKVvceV1RGXLz0GeesbQnVg
Wired Transmission Media
Wired transmission media includes twisted pair cables, coaxial cables, and optical fiber cables. It provides physically constrained signal propagation with little interference. Wired networks are highly compatible, reliable, secure, and can transmit data at faster speeds compared to wireless networks. However, wireless networks have become more prevalent in everyday devices due to their convenience over wired networks.
Communication channels by veerendra
The document discusses different types of communication channels including wired channels like twisted pair cables, coaxial cables, and optical fiber cables. It also discusses wireless channels such as terrestrial microwave communication, satellite communication, and underwater acoustic channels. Additionally, it covers storage channels such as magnetic tapes and magnetic disks that are used to store computer data. The key channels covered are wired channels using different mediums, wireless channels that transmit data through free space, and magnetic storage channels.
HHCJ AMUMARA: COMPUTER STUDIES LECTURE NOTE FOR SS3-002
Circuit-switched telephone systems use dedicated connections for each call, while packet-switched networks break communication into packets that are sent independently. Satellite phones connect to orbiting satellites from anywhere in the world, while fixed wireless systems provide local connectivity without cables or satellite by using radio frequencies. Data networks include personal, local, wireless local, metropolitan, wide area, virtual private, and campus networks that connect devices over various physical distances to share information.
Communication channels and its types
Communication channels transfer information from one place to another. Channels can be guided media like twisted pair cable, coaxial cable, and fiber optic cable which have applications in phone lines and local networks. Unguided media include microwaves, satellites, radio waves and infrared which propagate wirelessly but can have limitations like line of sight. Each channel has different characteristics, benefits, and applications for data transmission over various speeds and distances.
Mobile Ad Hoc Network
The document outlines the history and types of mobile ad hoc networks (MANETs). It discusses how the earliest MANET, called PRNET, was developed in the 1970s by DARPA. It grew out of early packet radio networks. MANET research increased in the 1990s with the rise of wireless networking. The document also covers MANET applications in military, emergency response, education, and home/entertainment settings and challenges like hidden and exposed terminal problems.
Advantages of ad hoc sensor network, driving application
This document discusses ad-hoc sensor networks. It notes that ad-hoc networks are decentralized wireless networks that do not rely on preexisting infrastructure, with each node participating in routing by forwarding data. The networks are self-configuring and scalable, allowing additional nodes to be added. They see applications in military operations, emergency response, home networks, and environmental monitoring where infrastructure is not present or mobility is required.
Tranimission Media
This document discusses different types of transmission media that can be used to transmit encoded data as energy, including copper wires, glass fibers, radio waves, satellites, and lasers. Copper wire is a mature technology that is inexpensive but has limited transmission speeds. Glass fiber can transmit data at higher speeds over longer distances but is more expensive. Radio waves, microwaves, and infrared can transmit data without a physical connection and are used for mobile and wireless transmissions. Satellites in different types of orbits can transmit data over long distances around the globe. The best transmission medium depends on the needs of speed, distance, mobility, and cost for each application.
Introduction To Computer Network
Networking • Computer network A collection of computing devices that are connected in various ways in order to communicate and share resources Usually, the connections between computers in a network are made using physical wires or cables However, some connections are wireless, using radio waves or infrared signals.
Telecommunication and networks
This document defines basic concepts of telecommunications and networks. It describes different types of communication including synchronous, where the receiver gets the message immediately, and asynchronous, where there is a delay. It also defines telecommunications as electronic communication of signals like telephone, radio and television. The document outlines different types of telecommunications media including twisted pair cable, coaxial cable, fiber optic cable, microwave transmission, and wireless transmission. It provides details on characteristics of each type of media such as speed and applications.
Types of networks 23
What is a Computer Network?
Collection of autonomous computers interconnected by a single technology is called computer network.
Two computers are set to be interconnected if they are able to exchange information.
Connection can be through a copper wire, fiber optics, microwaves, infrared or satellite.
Telecommunications
Telecommunication involves the transmission of signals over a distance for communication purposes using technology. It includes systems like telephony, radio, television, and computer networks. Telecommunication networks connect terminal nodes through transmission links and use circuit switching, message switching, or packet switching to route signals through the network. Common telecommunication networks include telephone networks, computer networks, the Internet, and radio networks.
Assignment2dc
This document provides an overview of key concepts in data communication including:
1. The five components of a data communication system are the sender, receiver, message, transmission medium, and protocol.
2. Data flow can be simplex, half-duplex, or full-duplex depending on whether transmission is unidirectional or bidirectional.
3. Signals can be analog or digital, with digital signals taking on discrete values like 0 and 1.
4. Common networking devices include modems, hubs, switches, and routers which facilitate data transmission and routing.
5. Network addressing identifies nodes and is implemented through physical MAC addresses and logical IP addresses which are organized into classes.
Computer network
A computer network is a set of connected computers. Computers on a network are called nodes. The connection between computers can be done via cabling, most commonly the Ethernet cable, or wireless through radio waves. Connected computers can share resources, like access to the Internet, printers, file servers, and others. A network is a multipurpose connection, which allows a single computer to do more.
↓↓↓↓ Read More:
@ Kindly Follow my Instagram Page to discuss about your mental health problems-
-----> https://instagram.com/mentality_streak?utm_medium=copy_link
@ Appreciate my work:
-----> behance.net/burhanahmed1
Thank-you !
Telecommunications and computer networks
This document discusses telecommunications and computer networks. It defines communication, telecommunications, and data communication. The objectives of communication networks are to offer timely information exchange, reduce effort and costs, and support improved management. Networks use simplex, half-duplex, and full-duplex transmission modes. Analog transmission sends continuous signals while digital transmission sends discrete values. Asynchronous transmission sends characters independently while synchronous transmission sends data in blocks. The telecommunication network model includes end user terminals, telecommunication processors, channels, computers, software, and various components that connect networks. [/SUMMARY]
Wireless Technology_Tecstride
Wireless technology has enable faster transmission of data and convenient communication among people separated by large distances.
For more detail you can visit : http://bit.ly/1TgPUr3
Network cabling
What is Network Cabling?
Cable is the medium through which information usually moves from one network device to another.
There are several types of cable which are commonly used with LANs. In some cases, a network will utilize only one type of cable, other networks will use a variety of cable types. The type of cable chosen for a network is related to the network's topology, protocol, and size.
Assignment on class 2
A Metropolitan Area Network (MAN) is a computer network that spans a larger area than a local area network (LAN), such as a city or college campus. A MAN can cover distances from a few miles to tens of miles and examples include cable TV networks and telephone networks providing high-speed internet connections over DSL lines.
Network Concepts
This document discusses telecommunication systems and computer networks. It defines a telecommunication system as transmitting sound, images, text and video electronically using channels like phones or satellites. Key components are servers, workstations, devices, and channels. A network connects computers and devices to share data, hardware and software. Components include servers, workstations, devices, channels and an operating system. A modem transforms digital signals to analog for transmission. Networks allow sharing hardware, software and information, and sending information remotely. The largest network is the Internet, which started as a US defense network and later connected universities. Network types include LAN, WLAN, WAN and MAN with different geographic ranges. Topologies describe how computers connect, including bus
Data communication CSEC
Communication channels can be either guided (wired) or unguided (wireless) and are used to transmit data between a transmitter and receiver. Guided channels include twisted pair cables, coaxial cables, and optical fibers which have different bandwidth and transmission properties. Unguided channels include terrestrial microwave, satellite, and broadcast radio which propagate signals through the air. The type of channel used depends on factors like bandwidth needs, data rate, distance, and number of receivers.
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What is Wireless Communication or Unguided Transmission Media
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DATA COMMUNICATION AND INTERNET TECHNOLOGY IN MANAGEMENT INFORMATION SYSTEMS
Communication devices (Electromagnetism)
This document discusses communication devices and systems. It describes how a communication system works by having a source that generates a signal which is converted to an electrical signal by a transducer. This electrical signal is then transmitted through a channel to a receiver. The receiver contains a transducer that converts the signal back to its original form. It provides examples of different communication channels that can be used including wired channels like twisted pair cables and fiber optics, as well as wireless channels. It also gives examples of applications that use communication systems like Bluetooth, WiFi, infrared devices, modems, network cards, and mobile phones.
Transmission Media
Transmission media carry signals between communication devices and come in both physical and wireless forms. Physical media include twisted pair cable, coaxial cable, and fibre optic cable which carry signals through physical wires or strands. Wireless media transmit signals through the air using technologies like broadcast radio, cellular networks, Bluetooth, WiFi and satellites. Each transmission medium has different characteristics like bandwidth, transfer rate and suitability for different communication needs which make some better than others depending on the situation.
unguided media.pptx
Unguided or wireless transmission media uses electromagnetic waves to transmit information without a physical medium. The three main types of unguided transmission media are radio waves, microwaves, and infrared waves. Radio waves can transmit over long distances but lack security. Microwaves can provide high-speed long-distance communication using line-of-sight terrestrial transmission between towers or satellite transmission, but are vulnerable to interference. Infrared provides short-range high-frequency communication but requires direct line of sight and cannot penetrate walls.
Network Media Types.pptx
Network media types include wired and wireless options. Wired networks use twisted pair wires, coaxial cable, or fiber optic cables to transmit data via physical connections. Twisted pair wires can be unshielded or shielded, while coaxial cables have inner and outer conductors separated by insulation. Fiber optic cables transmit data via pulses of light through glass or plastic fibers. Wireless networks transmit data via radio frequencies or infrared waves without physical connections. Common wireless technologies include Wi-Fi, Bluetooth, and communication satellites. Wired networks have higher speeds but limited ranges, while wireless networks allow mobility but can have lower speeds and security risks. The choice of network media depends on needs and constraints like data speeds, distances, costs, and susceptibility to interference
Chapter 1.pptx
- The document discusses key concepts in wireless technologies including wireless transmission fundamentals, global cellular networks, broadband wireless, Bluetooth, and future trends such as WiMAX, Mobile-Fi, ZigBee, and Ultrawideband.
- It covers analog and digital signaling and transmission, channel capacity, advantages and disadvantages of wireless communication, and types of wireless communication systems including Bluetooth applications and usage.
WNMC CH1.ppt
This document provides an overview of wireless communication and voice data. It discusses the history of wireless technology including the first wireless telephone conversation in 1880. It then describes different types of wireless communication such as satellite communication, infrared communication, broadcast radio, microwave communication, Wi-Fi communication, mobile communication systems, and Bluetooth technology. The document also discusses wireless devices, wireless communication protocols, and considerations for a wireless data communications strategy.
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Communication channels
- 1. Lakshya institute of technology and management Student name = Ankita kaurav From = pgdca
- 2. Table of Content Introduction Data Communication process Data Component of communication Data Communication types Data Communication channels 2
- 4. DATA COMMUNICATION Data communication is the process of using computing and communication technologies to transfer data from one place to another, or between participating parties. 4
- 5. Data communication process • Data communication is defined as exchange of data between two devices. • Tranmission media such as • a cable, wire or it can be air or vaccum also. • Combination of hardware or software devices and programs. 5
- 6. Component of communication o Message o Sender o Receiver o Transmission medium o Protocol 6
- 7. TYPES OF COMMUNICATION Simplex communication Half duplex communication Full duplex communication 7
- 9. Guided/wired media Twisted pair Co-axial cable Optical fiber 9
- 10. Twisted pair cable • A twisted pair is the ordinary copper wire that connects home and business computers to the telephone company. 10
- 11. Types of Twisted pair cables Shield Unshield 11
- 12. Twisted pair cable Rj 45 for internet[LAN] Rj 11 for telephone Twisted pair cable range 10 gb per second Maximum distance Upto 100 meters 12
- 13. Co-axial cable Range = 500 meters • Coaxial cable is another type of data transmission medium. • This outer conductor is wrapped in a plastic cover. • These types of cables are used to carry signals of higher frequencies to a longer distance. 13
- 14. OPTICAL FIBRE • The optical fiber cable carries data as light • Which travel inside a thin fiber of glass. • Such types of cable are usually used in backbone networks. • Signal can travel longer distances and electromagnetic noise cannot affect the cable 14
- 15. UNGUIDED/ WIRELESS MEDIA • Radio waves • Microwaves • Infrared waves 15
- 16. Radio waves • Radio waves are used for communication such as broadcasting television and radio. • Radio waves are transmitted easily through air. • Radio waves of frequency 300KHz- 30MHz can travel long distance. 16
- 17. Microwaves Electomagnetic waves of frequency range 1GHz – 300GHz. Unidirectional, can move inonly one direction Used in point-to- communication or unicast communication such as radar and satellite. Provide very large information-carrying capacity. 17
- 18. Infrared waves • Electromagnetic waves of frequency range 300GHz- 400THz. • Very high frequency waves. • Used for short-distance point-to-point communication such as mobile-to-mobile, remote- control-to-tv, and Bluetooth-enabled devices to other devices like mouse, keyboards etc. 18