EFFECT OF IMPLEMENTING ALAMOUTI DIVERSITY SCHEME IN MULTI-USER DS-CDMA WIRELESS COMMUNICATION SYSTEM

Abstract

The communication system under present study utilizing ½ rated convolutional encoding and interleaving schemes over an  Additive White Gaussian Noise (AWGN) and other fading (Rayleigh and Rican) channels with deployment of Alamouti scheme. The simulation study is made with the development of a computer program written in MATLAB source code. Computer simulation results on BERs demonstrate that the multi transmit antenna supported DS- CDMA system outperforms in retrieving synthetically generated bit stream of the individual user. The system is highly effective to combat inherent interferences under fading channels. It is anticipated from the study that the performance of the communication system degrades with the increasing of noise power.