Mobility

Performance Evaluation of MIMO Based WiMAX System

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Executive Summary

In mobile communication system signals transmitted by a mobile station are reflected and scattered by the surrounding objects. Hence, the signals travel multiple paths, of different lengths and attenuations, before arriving at the base station. This phenomenon is well known as multipath propagation. Multipath propagation results in fading problem, which sets a bottleneck for achieving a very high data rate in Broadband Wireless Access (BWA) systems. Antenna diversity techniques have been proposed in the literatures to combat multipath fading problem. In this regard, Multiple-Input Multiple-Output (MIMO) techniques are considered to be essential for BWA systems like the IEEE 802.16e, which is popularly known as mobile WiMAX systems.

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