Author(s): Mrs. P.SUDHA, Dr. A.RENGARAJAN

Worldwide interoperability for Microwave Access (WiMAX), that is additionally called IEEE 802.16 standards. WiMAX may be a recent analysis space for the forefront of the technology drive thanks to the growing demand for high-speed wireless broadband networks. Multihop WiMAX networks are significantly helpful as they increase the coverage space while not the requirement to deploy valuable base stations. It’s grew to assist solve barriers to adoption, like ability and price of readying and to facilitate the wireless metropolitan area networks for trade by process and conducting ability testing and labeling seller systems with a label once testing has been completed with success. WiMAX has several benefits as well as wide coverage space and high information measure. These benefits modify WiMAX to support long transmission range and high data rate compared to cellular and LAN network. WiMAX a wireless normal that uses orthogonal frequency division multiple access (OFDMA) and guarantees to supply mobile broadband services even at a conveyance speed of up to a hundred and twenty km/h. although the WiMAX normal supports both mounted and mobile broadband information services, the latter have larger demand. During this research paper a general review on WiMAX for physical layer, MAC layer, QoS in WiMAX, and applications of WiMAX.