Wireless communication is the transfer of information over a distance without the use of wires. Wireless??communication is generally considered to be a branch of telecommunications. Wireless operations permit??services, such as long-range communications that are impossible or impractical to implement using wires.??Wireless communication brings fundamental changes to data networking and telecommunications, and makes??integrated networks a reality. Wireless networks focus on networking and user aspects. Network architecture??for personal communication systems, wireless LANs, radio, tactical and other wireless networks, and design??and analysis of protocols are addressed on a regular basis. At present, the major application of Wi-Fi??implementation in libraries is limited to information management. This paper elaborates the Wi-Fi in detail about the components, functions, area of applications, issues, and challenges. http://dx.doi.org/10.14429/djlit.31.1.763.
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