This document provides an overview of Wi-Fi technology, including its standards, components, configurations, security features, and applications. Wi-Fi allows devices to connect to a wireless local area network and the Internet using radio waves. Common Wi-Fi standards are 802.11b, 802.11a, and 802.11g. A Wi-Fi network uses access points that act as base stations for connecting wireless devices within a range of about 100 feet indoors. Wi-Fi provides mobility and flexibility but can be slower than wired connections and more vulnerable to security issues.
Wi-Fi (Wireless Fidelity) is a generic term owned by "WiFi Alliance" which refers to any Wireless Local Area Networks (WLANs) based on IEEE 802.11 standard.
This presentation is prepared as reference of "E-Commerce Infrastructure" for BBA 6th Semester Students of Prime College. Document includes general introduction of WiFi Technology, WiFi Specification, advantages of WiFi and so on. Resources from various portals and slides from other authors has been used as reference.
Wi-Fi (Wireless Fidelity) is a generic term owned by "WiFi Alliance" which refers to any Wireless Local Area Networks (WLANs) based on IEEE 802.11 standard.
This presentation is prepared as reference of "E-Commerce Infrastructure" for BBA 6th Semester Students of Prime College. Document includes general introduction of WiFi Technology, WiFi Specification, advantages of WiFi and so on. Resources from various portals and slides from other authors has been used as reference.
WiFi stands for Wireless Fidelity. WiFiIt is based on the IEEE 802.11 family of standards and is primarily a local area networking (LAN) technology designed to provide in-building broadband coverage.
Current WiFi systems support a peak physical-layer data rate of 54 Mbps and typically provide indoor coverage over a distance of 100 feet.
WiFi has become the de facto standard for last mile broadband connectivity in homes, offices, and public hotspot locations. Systems can typically provide a coverage range of only about 1,000 feet from the access point.
Wireless Standards Wi Fi 6 Evolution and Wi Fi 7ijtsrd
IEEE standardized wireless technologies as 802.11, 802.11a b g n, 802.11ac. 802.11 legacy was released by IEEE in 1997. IEEE 802.11b was made available to users through Wi Fi routers. With 802.11g n increased the network capacity and data throughput support. 802.11n or Wi Fi 4 introduced MIMO technology. Downlink MU MIMO was one of the main features of 802.11ac or Wi Fi 5. The latest 802.11ax or Wi Fi 6 supports both downlink and uplink MU MIMO. The use of OFDMA, dual bands, Target Wake Time technologies will help in handling traffic offloaded from the 5G wireless network and help in catering to dynamic network needs, handling massive dense IoT networks, and high throughput demands. Wi Fi Alliance started working on the next wireless generation that is IEEE 802.11be or Wi Fi 7. Wi Fi 7 will be standardized by 2023. Prashrita Kaushal "Wireless Standards: Wi-Fi 6 Evolution and Wi-Fi 7" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-6 | Issue-1 , December 2021, URL: https://www.ijtsrd.com/papers/ijtsrd47732.pdf Paper URL: https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/47732/wireless-standards-wifi-6-evolution-and-wifi-7/prashrita-kaushal
This presentation gives brief description of Wi-Fi Technolgy, standards, applications,topologies, how Wi-Fi network works, security,advantages and innovations.
WiFi stands for Wireless Fidelity. WiFiIt is based on the IEEE 802.11 family of standards and is primarily a local area networking (LAN) technology designed to provide in-building broadband coverage.
Current WiFi systems support a peak physical-layer data rate of 54 Mbps and typically provide indoor coverage over a distance of 100 feet.
WiFi has become the de facto standard for last mile broadband connectivity in homes, offices, and public hotspot locations. Systems can typically provide a coverage range of only about 1,000 feet from the access point.
Wireless Standards Wi Fi 6 Evolution and Wi Fi 7ijtsrd
IEEE standardized wireless technologies as 802.11, 802.11a b g n, 802.11ac. 802.11 legacy was released by IEEE in 1997. IEEE 802.11b was made available to users through Wi Fi routers. With 802.11g n increased the network capacity and data throughput support. 802.11n or Wi Fi 4 introduced MIMO technology. Downlink MU MIMO was one of the main features of 802.11ac or Wi Fi 5. The latest 802.11ax or Wi Fi 6 supports both downlink and uplink MU MIMO. The use of OFDMA, dual bands, Target Wake Time technologies will help in handling traffic offloaded from the 5G wireless network and help in catering to dynamic network needs, handling massive dense IoT networks, and high throughput demands. Wi Fi Alliance started working on the next wireless generation that is IEEE 802.11be or Wi Fi 7. Wi Fi 7 will be standardized by 2023. Prashrita Kaushal "Wireless Standards: Wi-Fi 6 Evolution and Wi-Fi 7" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-6 | Issue-1 , December 2021, URL: https://www.ijtsrd.com/papers/ijtsrd47732.pdf Paper URL: https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/47732/wireless-standards-wifi-6-evolution-and-wifi-7/prashrita-kaushal
This presentation gives brief description of Wi-Fi Technolgy, standards, applications,topologies, how Wi-Fi network works, security,advantages and innovations.
This slide is about WiFi & Bluetooth that we use everyday in our Smart devices. These devices are used for connect with other devices for sharing or plug & play purpose. Here is everything about wifi & bluetooth that you need to know or present to others for educational purpose.
Wireless technology revolutionizes the delivery of medical services. Japan is an early and intense adopter of wireless technologies and internet medical services. This presentation describes the impact of wireless technology development on tele-medicine from the Japan viewpoint.
Presentation given at an investors event at the Zurich Stock Exchange.
Wifi is one of the best wireless technology all over the world.In this slide i tried to show something which is the basic knowledge for general people. Please like and share this slide.
Thank you.
WIFI Presentation and How it has Improved my lifeRahul Barick
Presenation by RAHUL BARICK(RB)
WIFI-TECHNOLOGY AGENDA
INTRODUCTION
Wifi-Technologies
What are the Elements of wi-fi network
Hotspots
How a Wi-Fi Network Works
Advantages
Disadvantages
How wi-fi improved my life
Conclusion
U can Learn and know Various things from My Slide
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
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.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
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.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
2. • Introduction
• Wi-Fi Technologies
• Wi-Fi Architecture
• Wi-Fi Network Elements
• How a Wi-Fi Network Works
• Wi-Fi Network Topologies
• Wi-Fi Configurations
• Applications of Wi-Fi
• Wi-Fi Security
• Advantages/ Disadvantages of Wi-Fi
3. • Wireless Technology is an alternative to Wired
Technology, which is commonly used, for
connecting devices in wireless mode.
• Wi-Fi (Wireless Fidelity) is a generic term that
refers to the IEEE 802.11 communications
standard for Wireless Local Area Networks
(WLANs).
• Wi-Fi Network connect computers to each
other, to the internet and to the wired network.
4. Wi-Fi Networks use Radio Technologies to
transmit & receive data at high speed:
• IEEE 802.11b
• IEEE 802.11a
• IEEE 802.11g
5. •Appear in late 1999
•Operates at 2.4GHZ radio spectrum
•11Mbps(theoretical speed) within 30m
range
•4-6Mbps(actual speed)
•100-150 feet range
•Most popular, least expensive
6. •Introduced in 2001
•Operates at 5GHZ(less popular)
•54 Mbps(theoretical speed)
•15-20Mbps (actual speed)
•50-75feet range
•More expensive
•Not compatible with 802.11b
7. •It is extension of 802.11b,and shorter range
than 802.11b
•54Mbps(theoretical speed)
•20-25Mbps(actual speed)
•50-75feeet range
•More expensive
8. • Access Point (AP) - The AP is a wireless LAN
transceiver or “base station” that can connect one or many
wireless devices simultaneously to the Internet.
• Wi-Fi cards - They accept the wireless signal and relay
information.They can be internal and external.(e.g PCMCIA
Card for Laptop and PCI Card for Desktop PC)
• Safeguards - Firewalls and anti-virus software protect
networks from uninvited users and keep information secure.
9. • Basic concept is same as Walkie talkies.
• A Wi-Fi hotspot is created by installing an access point
to an internet connection.
• An access point acts as a base station.
• When Wi-Fi enabled device encounters a hotspot the
device can then connect to that network wirelessly.
• A single access point can support up to 30 users and
can function within a range of 100 – 150 feet indoors
and up to 300 feet outdoors.
• Many access points can be connected to each other via
Ethernet cables to create a single large network.
12. • Home
• Small Businesses
• Large Corporations & Campuses
• Health Care
• Wireless ISP (WISP)
• Travellers
13. • Wireless technology doesn’t remove any
old security issues, but introduces new
ones
• Eavesdropping
• Man-in-the-middle attacks
• Denial of Service
14. • Service Set Identifier (SSID)
• Wired Equivalent Privacy (WEP)
• 802.1X Access Control
• Wireless Protected Access (WPA)
• IEEE 802.11i
15. • Mobility
• Ease of Installation
• Flexibility
• Cost
• Reliability
• Security
• Use unlicensed part of the radio spectrum
• Roaming
• Speed
16. Speed – Slower than cable
Range – Affected by various medium
Travels best through open space
Reduced by walls, glass, water, etc
17. Wi-Fi is one of the fastest growing
technologies.The Demand for connecting
devices without the use of cables is
increasing everywhere.Wi-fi can be
found on colleges campus,offices,& in
many public areas.