Wireless Technology

Wireless communication is one of the most desired modes of communication (connectivity) between two or more devices. In this technology, the data communication is performed and delivered over the air via electromagnetic waves, such as radio frequencies, infrared and satellite, rather than over cables and wires.

Wireless communications operate over particular frequencies in the electromagnetic spectrum from 3 Hz to 3000 GHz (3 THz), called radio waves. It includes a diverse variety of computing and communications applications ranging from third- to fifth-generation (3G/4G/5G) cellular devices, broadband access, indoor WiFi networks, vehicle-to-vehicle (V2V) systems to embedded sensor and radio frequency identification (RFID) applications, microwave, aeronautical, maritime and other commercial and private radio services.

Due to the dynamic requirement of wireless requirement different methods and standards of wireless communication have been developed across the world, based on various commercially driven requirements like specific application and transmission range. These technologies can roughly be classified into four individual categories; Wireless Personal Area Network (WPAN), Wireless Local Area Network (WLAN), Wireless Metropolitan Area Network (WMAN), Wireless Wide Area Network (WWAN). As implicated by their names, the properties of these solutions in terms of range and data rate are optimized for personal, local, metropolitan, or worldwide coverage and use.