Improvement in interference rejection capability using space-time turbo code and adaptive beamforming for MIMO-OFDM system

This paper aims at performance analysis of MEMO-OFDM system using Space Time Turbo Coding and adaptive beamforming. Computer simulations investigate the BER performance of the Space Time Turbo Coded MEVIO-OFDM system. The system model has been tested for BPSK, QPSK, 16 PSK, 256 PSK modulations with an AWGN channel, Rayleigh fading channel and Rician fading channel using LMS and LLMS beamforming algorithms. The simulation results demonstrate that the proposed method not only has good ability of suppressing interference, but also significantly improves the bit-error rate (BER) performance of MEVIO-OFDM system.