International Journal of Emerging Technology and Advanced Engineering (IJETAE)
WiMAX is the worldwide interoperability for microwave access, to provide business and consumer world wireless broad band services in metropolitan area networks. It has a target range of 31 miles and a target transmission rate exceeding 100 Mbps. Mobile WiMAX is an OFDM based technology for deployment which allows multiple-antenna operations to be performed on vector-flat sub carrier. Fixed WiMAX, which is based on IEEE 802.16-2004, uses a 256 FFT- based OFDM physical layer. Mobile WiMAX, which is based on the IEEE 802.16e-2005 standard, uses a scalable OFDM-based physical layer. It integrates wireless technology specific functionally with IP networking equipment.