Performance Evaluation of Relaying Schemes for Wireless Communication Systems

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The evaluation of MIMO (Multiple-Input Multiple-Output) Relay wireless system is carried out and compared against the performance of a SISO (Single-Input Single-Output) Relay wireless system. The encoding scheme used in MIMO is Alamouti coding and decoding is done by the Maximum Likelihood (ML) detector. A comparison is made between the SISO non-regenerative Amplify-and-Forward (AF) and regenerative Decode-and-Forward (DF) relaying schemes. The plots of Bit Error Rate (BER) versus Signal to Noise Ratio (SNR) are simulated by incorporating Rayleigh fading condition in the presence of Additive White Gaussian Noise (AWGN) using MATLAB.