Wireless networks allow devices to connect to a network without being physically connected by cables. They work by transmitting radio signals that carry data between wireless devices and access points or base stations. There are different types of wireless networks including WLANs for local areas like campuses, WPANs for personal networks using technologies like Bluetooth, and WMANs for connecting multiple networks over a metropolitan area. Wireless networks offer mobility and flexibility compared to wired networks but have lower bandwidth and speeds. Common applications of wireless networks include mobile access to the internet, extending wired networks wirelessly, and connecting remote areas without wired infrastructure.
Presentation on 1G/2G/3G/4G/5G/Cellular & Wireless TechnologiesKaushal Kaith
This Presentation is explaining all about the Generations of Mobile or Cellular Technology (1G/2G/2.5/ 3G/4g/5G). This explain the invented details ,features,drawbacks,look of wireless models and comparison and evolution of technology from 1G to 5G and also explaining about wireless application and their services.
WLAN is a wireless computer network that links two or more devices (using-spectrum or OFDM radio) within a limited area such as a home, school, computer laboratory, or office building.
WLAN is a marketed under the Wi-Fi brand name.
Wireless LANs have become popular in the home due to ease of installation and use.
hey!!!!! everybody dats was simple ppt on mobile computing as u all aware dat d world is not stationary things are getting change technology is rocking all over so lets get into in it
and plz. dont forget to comment on my work weather u lik or not
This presentation gives brief description of Wi-Fi Technolgy, standards, applications,topologies, how Wi-Fi network works, security,advantages and innovations.
Presentation on 1G/2G/3G/4G/5G/Cellular & Wireless TechnologiesKaushal Kaith
This Presentation is explaining all about the Generations of Mobile or Cellular Technology (1G/2G/2.5/ 3G/4g/5G). This explain the invented details ,features,drawbacks,look of wireless models and comparison and evolution of technology from 1G to 5G and also explaining about wireless application and their services.
WLAN is a wireless computer network that links two or more devices (using-spectrum or OFDM radio) within a limited area such as a home, school, computer laboratory, or office building.
WLAN is a marketed under the Wi-Fi brand name.
Wireless LANs have become popular in the home due to ease of installation and use.
hey!!!!! everybody dats was simple ppt on mobile computing as u all aware dat d world is not stationary things are getting change technology is rocking all over so lets get into in it
and plz. dont forget to comment on my work weather u lik or not
This presentation gives brief description of Wi-Fi Technolgy, standards, applications,topologies, how Wi-Fi network works, security,advantages and innovations.
Wireless network (cellular network architecture and http.)Abdullah Moin
Cellular architecture is constituted of the following − A network of cells each with a base station. A packet-switched network for communication between the base stations and mobile switching centres. The public switched telephone networks to connect subscribers to the wider telephony network.
In all cellular systems, land area is divided into a number of cells each with its radio service. In AMPS the area is large which in digital services, the area is much smaller. Conventionally cells are hexagonal in shape. Each cell uses a frequency range that is not used by its adjacent cells. However, frequencies may be reused in non-adjacent cells.
WLAN definition
WLAN is the abbreviation of Wireless Local Area Network, which refers to the application of wireless communication technology to interconnect computer equipment to form a network system that can communicate with each other and realize resource sharing.
A Wireless Local Area Network (WLAN) wireless LAN is a wireless computer network that links two or more devices using wireless communication to form a local area network within a limited area such as a home, school, computer laboratory, campus, or office building.
The essential feature of a wireless local area network (WLAN) is that it no longer uses a communication cable to connect the computer to the network, but connects it wirelessly, which makes the construction of the network and the movement of the terminal more flexible.
It is a very convenient data transmission system. It uses radiofrequency (RF) technology and uses electromagnetic waves to replace the old-style twisted-pair copper wire (Coaxial) in the local area network. It communicates in the air and makes a wireless local area network. It can be easily used.
NETWORKA group of autonomous computers and associated devices connected together
by communication channels like cables or telephone lines etc. is called a network.In a network, the computers work as stand alone machines but can communicate
with other computers on the network as and when required.
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Verilog Based Design and Simulation of MAC and PHY Layers for Zigbee Digital ...IJERA Editor
The past several years have witnessed a rapid development in the wireless network area. So far wireless networking has been focused on high-speed and long range applications. Zigbee technology was developed for a Wireless Personal Area Networks (WPAN), aimed at control and military applications with low data rate and low power consumption. Zigbee is a standard defines the set of communication protocols for low-data-rate short-range wireless networking. Zigbee-based wireless devices operate in 868 MHz, 915 MHz, and 2.4 GHz frequency bands. The maximum data rate is 250K bits per second. Zigbee is mainly for battery-powered applications where low data rate, low cost, and long battery life are main requirements. This paper explores Verilog design for various blocks in Zigbee Transmitter architecture for an acknowledgement frame. The word digital has made a dramatic impact on our society. Developments of digital solutions have been possible due to good digital system design and modeling techniques. Further developments have been made and introduced VLSI in order to reduce size of the architecture, to improve speed of operation, improvements in predictability of the circuit behavior. Digital Zigbee Transmitter comprises of Cyclic Redundancy Check, Bit-to-Symbol block, Symbol-to-chip block, Modulator and Pulse shaping block. The work here is to show how we can design Zigbee transmitter with its specifications by using Verilog with less number of slices and Look up tables (LUTs).
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
2. Index
1. introduction
2. Need of Wireless Network
3. How Wireless Networks Work
4 .Type of Network
5 .Illustration of Network Type
6. Comparision of Wired & Wireless network
7. Advantages
8. Disadvantage
9. Applications
10. Conclusion
3. What is a wireless network?
A technology that enables two or more entities to
communicate without network cabling.
wireless networking today is about where broadcast radio
was in the late 1920s. The use of wireless technology is
quickly becoming the most popular way to connect to a
network. Wi-Fi is one of the many available technologies
that offer us the convenience of mobile computing.
4. Needs Of Wireless
Networks
Mobile communication is needed.
Communication must take place in a terrain that makes wired
communication difficult or impossible.
A communication system must be deployed quickly.
Communication facilities must be installed at low initial cost.
The same information must be broadcast to many locations.
5. How Wireless Networks Work
Moving data through a wireless network involves three
separate elements: the radio signals, the data format, and the
network structure. Each of these elements is independent of
the other two, so you must define all three Introduction to
Wireless Networks 13 when you invent a new network. In
terms of the OSI reference model, the radio signal operates at
the physical layer, and the data format controls several of the
higher layers. The network structure includes the wireless
network interface adapters and base stations that send and
receive the radio signals.
6. WLANS: Wireless Local Area Networks
WLANS allow users in a local area, such as a university campus or
library, to form a network or gain access to the internet.
WPANS: Wireless Personal Area Networks
The two current technologies for wireless personal area networks are
Infra Red (IR) and Bluetooth (IEEE 802.15). IR requires a direct line
of site and the range is less.
WMANS: Wireless Metropolitan Area Networks
This technology allows the connection of multiple networks in a
metropolitan area such as different buildings in a city.
8. Comparision of Wired
& Wireless NetworkWired Networks Wireless Networks
Installation of wired network
is so Difficult.
Installation is Easy to
Installation
Time of Instalation is more. Time of installation is less.
Reliability is high is Reasonably high
Speed & bandwidth are high
& 100mbps
Speed & bandwidth are low
& 54mbps
10. Server faults stop applications being available
Network faults can cause loss of data.
Network fault could lead to loss of resources
User work dependent upon network
11. Cable replacement for peripherals
Mobile extension of wired networks
Fixed wireless between homes and businesses and the Internet
Mobile access to the Internet from outdoor areas
12. In high-density urban area there may be multiple networks
like MPLS, Metro Ethernet, fibre networks, ADSL. There may
WiMAX is a technology for providing high speed access to
rural areas. It can provide Copyright to IJIRCCE DSL like
speeds.
Various terrain types such as hills with a rather high density of
trees, moderate tree density, flat area with a low tree density
can dictate the use of WiMAX technology Radio Waves are
unpredictable and may go beyond the coverage area of the
premises. Some parts of the coverage area may not get the
radio waves.