Institute of Research and Journals (IRAJ)
Sensor networks are widely used in the large geographical area and this has to be finding the location of every transmission. The frequencies are considered the major persuasion in sensor networks. Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA) and Code Division Multiple Access (CDMA) techniques are used to share the available bandwidth, but these approaches are deviating the frequencies in a wireless communication system. This paper describes that why OFDMA are best than all other multiplexing techniques.