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Wi-Fi, also known as Wireless Local Area Network (LAN), is the most common wireless technology generally used for connecting a computer to the Internet. Wi-Fi operates based on IEEE 802.11 standards, which has been developed to enable Wireless LAN in the 2.4 GHz, 3.6 GHz or 5.2 GHz frequency bands. Wi-Fi access points are known as hot spots which are small, so the coverage is sparse. A single access point can support 30 users and can function within a range of 100-150 feet indoors and up to 300-500 feet outdoors.
Interested readers can visit Wi-Fi Alliance site for more information: http://www.wi-fi.org/
Wi-Fi can serve as a communication platform for smart appliances, home area networks, neighborhood networks, and wide area networks integrating with a smart grid. Wi-Fi can also be implemented in a substation environment to support the operation of wireless sensors. However, Wi-Fi will require encryption for increased security.
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