Abstract — The telecommunication industries are insisting on new standardized technologies with high transmission abilities like in IEEE 802.16 versions, which are also referred as WiMAX. WiMAX is a wireless transmission infrastructure that allows fast deployment as well as low maintenance costs. In this system efficient utilization of bandwidth is possible for a wide range of frequencies and can be used as a last mile solution for broadband internet access. It offers both line of sight and non-line of sight wireless communication. This paper elucidates all compulsory features of the WiMAX OFDM physical layer specified in IEEE 802.16 standards by simulating the WIMAX models and also this paper will manifest a study on WiMAX system by comparing different modulation schemes such as BPSK, QPSK and QAM (Both 16 and 64). The performance of the designed system is evaluated based on BER and SNR with the aid of MATLAB tools
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