DFE-SDR Simulation for SFD-MIMO-OFDM System
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A spatial multiplexing and diversity joint transmit structure for MIMO-OFDM(Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing) system was proposed.Space-Frequency Block Coding(SFBC) is used over its all spatial multiplexing layers to obtain both space diversity and frequency diversity(SFD) gain.According to the idea of DFE and Semi-definite Relaxation(SDR) detection,a joint DFE and SDR detection algorithm for SFD-MIMO-OFDM system was proposed.The algorithm can achieve a good trade-off of complexity and BER performance.Detailed simulations analysis processes are proposed which prove that the BER performance improved greatly compared with generic DFE detector after the algorithm is applied in SFD-MIMO-OFDM system.