Performance Analysis of Wimax System by Increasing Capacity Using Various Compression Techniques

Abstract: With the tremendous increase in wireless technology and wireless services in the last few decades has put forward the need of an efficient wireless technology that provides high data rates. WiMAX is a promising wireless transmission technology that offers both fixed and mobile broadband wireless accesses, based on methods defined in 802.16 IEEE standards. IEEE 802.16 (WiMAX) standard presents specifications for fixed Line of sight (LOS) communication in the range of 10-66GHz (802.16c), as well as for fixed, portable, Non-LOS communication in the range of 2-11GHz (802.16a, 802.16d). This paper presents an extensive study of WiMAX system. For increasing the capacity in proposed wimax system different data compression techniques are used.The proposed modification to the WiMAX system is tested under AWGN channel. The results show that the proposed modifications in the system increases the SNR, channel capacity, better link reliability and throughput of the system.

Keywords: Fixed broadband wireless access point, Physical layer, MAC Layer, WAN, MAN, BWA, WiMAX, Quality of Service(QoS), OFDM