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This article proposes a spatial multiplexing and diversity joint transmit structure for multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) system.The structure uses space-frequency block coding (SFBC) over all its spatial multiplexing layers to obtain both space diversity and frequency diversity gain.The article derives a monte carlo probabilistic data association (PDA) detector to obtain a better bit error rate (BER) performance when compared to the generic PDA detector.Computer simulation results show that the proposed detector can reduce the inter-symbol interference (ISI) greatly,improve the system performance significantly,and lower the computation complexity to a proper lever.
This article proposes a spatial multiplexing and diversity joint transmission structure for multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) system. The structure uses space-frequency block coding (SFBC) over all of its spatial multiplexing layers to obtain both space diversity and frequency diversity gain. The article derives a monte carlo probabilistic data association (PDA) detector to obtain a better bit error rate (BER) performance when compared to the generic PDA detector. Computer simulation results show that the proposed detector can reduce the inter- symbol interference (ISI) greatly, improve the system performance significantly, and lower the computation complexity to a proper lever.