Wireless Communication

 

WIFI comes under wireless network protocol based on the IEEE 802.11  standard  , commonly used for LAN( local area networking). The main purpose of wifi is for internet access  , allowing nearly digital devices to exchange of data by radio wave . Wi-Fi uses multiple part of the IEEE 802 protocol. It is designed for interwork seamlessly with its wired sibling Ethernet . The commonly uses radio bands for wifi are 2.4 gigahertz (120 mm) ultra high frequency between(300 megahertz to 3 gigahertz)  and 5 gigahertz (60 mm)super high frequency  between (3 to 30 gigahertz), these radio bands are subdivided into multiple channels. Channels are shared between network but only one transmitter can locally transmit on a  channel at any moment in time.click here to continue reading