Wireless LAN (WiFi)
Bongsik Shin · Auerbach Publications eBooks · 2017
This chapter focuses on explaining WiFi institute of electrical and electronics engineers (IEEE) 802.11 standards in their technical details and implementation issues. IEEE802.11 represents a collection of wireless local area network standards including 802.11a, 802.11b, 802.11g, 802.11n, and 802.11ac. The chapter explains the radio wave used for the delivery of WiFi frames. Radio is a type of electromagnetic radiation wave that also includes light, X-rays, and Ultraviolet. The chapter also explains how the frequency range of the 2.4 gigahertz industry, scientific, and medical band is further divided into WiFi channels used by the 802.11 standards. It provides the implementation details of WiFi at home and small office and home office (SOHO) and its connectivity to the Internet. The WiFi home/SOHO network is generally composed of a broadband modem, a wireless access router as an intermediary device, and end stations such as laptops, tablet computers, and smart phones.