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Wi-Fi and 802.11 are often used interchangeably. The name 802.1 comes from the IEEE committee that standardized it. Wi-Fi or Wireless Fidelity is an interoperability certification program promoted by the Wi-Fi alliance, an association of wireless equipment manufacturers. The idea is that a consumer should look for the Wi-Fi logo and feel safe that this 802.11 product will work with other Wi-Fi certified products.

802.11 comes in several flavors. 802.11b is the 'vanilla' wireless networking standard, operating over the 2.4 GHz band, and offers baseline wireless functionality. It's the most widely deployed standard and is currently the only standard that can be used freely indoors in India. There is a limitation on the number of Wi-Fi networks that can simultaneously co-exist in an area. This is because there is limited spectrum availability in each band, and each Wi-Fi network uses a part of it. For example a total of 80 MHz is available in the 2.4 GHz band and each Wi-Fi network us...