Wi-Fi Or Wireless Fidelity: Wi-Fi is basically a trademark of the Wi-Fi Alliance that was formed as Wireless Ethernet Compatibility Alliance or WECA that consists of over 300 companies whose products are licensed by the Wi-Fi Alliance on the basis of the IEEE 802.11 benchmarks (also known as Wi-Fi and WLAN or Wireless LAN). This authentication guarantees interoperability between various wireless gadgets.
The expression “Wi-Fi” means “Wireless Fidelity” that resembles the deep-rooted expression “Hi-Fi” or “High Fidelity”. However, there is no formal meaning of the term.
This Wi-Fi alliance was established since numerous products were not using IEEE 802.11 properly and a few products incorporated proprietary extensions. This resulted in inconsistencies between products from various companies.
Wi-Fi Or Wireless Fidelity:
The wireless components are checked by the Wi-Fi Alliance according to their own project charter. Products that are approved get Wi-Fi licensed and can have the Wi-Fi logo. The Wi-Fi Members’ products are exclusively checked since the per-item fees and membership fees are paid by them. If the Wi-Fi logo is not present, it does not essentially signify nonconformity with the standard.
In the United States, Poland, France, and some other nations, the expression Wi-Fi is frequently applied by the common people as an equivalent word for WLAN or Wireless Internet. However, every wireless Internet product does not have a Wi-Fi certification. This might be due to the certification expenses that should be paid for every form of certified gadgets.
Wi-Fi authentication is offered for technology applied in cellular phones, residential local area networks, video games and other gadgets that need wireless networking. It encompasses IEEE 802.11 benchmarks: 802.11a, 802.11b, 802.11g and 802.11n.
The majority of personal computer operating systems, laptops, game consoles, printers, smartphones, and other peripherals back Wi-Fi. The range of Wi-Fi Networks is limited.
Examples of Wi-Fi Enabled Devices:
Following are some examples of Wi-Fi enabled devices:
- PC (Personal Computer)
- Game console
- MP3 player
- Cellular phone
- PDA (Personal Digital Assistant or Palmtop Computer)
- Radio Technology Used by Wi-Fi
The radio technologies used by Wi-Fi can be categorized into the following:
• Multi-Carrier OFDM (Orthogonal Frequency Division Multiplexing) Radio Technology
• Single Carrier Direct-Sequence Spread Spectrum Radio Technology (a component of the bigger family of spread spectrum systems)
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