Performance Analysis of 2x2 MIMO 16-PSK with and without Applying TCM Coding Over Different Communication Channels

A high data rate wireless communication is required in many data communication systems. In most wireless communications, most of the research is focused on evaluating and improving service systems with higher data rates and spectral efficiency that satisfy more users and better channel capacity requirements. Modulation schemes and coding techniques are the key parameters for improving system performance to an optimized data rate without increasing the channel bandwidth achievable for a wireless system using orthogonal space-time block code (OSTBC) with modern multiinput multi-outputs (MIMO) systems. This work concentrates on evaluating bit error rate (BER) performance of16-PSK modulation technique with and without applying trellis-coded modulation (TCM) coding over three different communication channels, additive white gaussian noise (AWGN), Rayleigh, and Rician channels, using MIMO system to obtain a sensible BER performance while a 2x2 MIMO system is proposed. The achieved simulation results in both cases of 16-PSK with and without applying TCM showed that more Eb/No energy is required for the 16-PSK without TCM to achieve the same BER compared to 16-PSK with TCM coding technique. Therefore, applying TCM coding technique improved the performance on average by about 3 dB. Also, in both cases with and without TCM coding over AWGN channel gives better performance compared to the Rician and Rayleigh channels.