Abstract
In this paper we analyze the performance of 2by3 MIMOMCCDMA system in MATLAB which greatly reduces BER by increasing the efficiency of system. MIMO and MCCDMA system arrangement is used to decrease bit error rate and also figure a new system called MCCDMA which is multiple user and multiple access system used to enhance the performance of the system. MCCDMA is a narrowband flat fading in character which changes frequency selective to several narrowband flat fading multiple parallel subcarriers to enhance the effectiveness of the system. Now this MCCDMA further improved by grouping by 2by3 MIMO system which make use of ZF decoder at the receiver to reduce BER in which half rate convolutional encoded Alamouti STBC block code is intended for channel encoding as transmit diversity for MIMO with multiple transmit and receive antennas. Main improvement of using MIMOMCCDMA is for reducing complication of system and also for dropping BER and finally increasing gain of the system. Then we estimate the system in different modulation techniques like, 64QAM, 8PSK, 16QAM, QPSK, 32QAM and 8QAM using MATLAB in Rayleigh fading channel.
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