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MMSE SQRD based SISO detection for coded MIMO-OFDM systems

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Abstract

In this paper, we propose a minimum mean square error (MMSE) sorted QR decomposition (SQRD) based soft-input soft-output (SISO) detection algorithm for coded multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems. The proposed detection is derived from the SISO MMSE detection, which is a popular detection strategy for iterative receivers. For each transmitted symbol in the proposed detection, a soft successive interference cancellation (SIC) is performed based on a posteriori probabilities of past detected symbols. Simulation results show that the proposed detection, while needing less computational efforts, achieves significant performance gain compared with the SISO MMSE detection.

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Authors and Affiliations

  1. National Mobile Communication Research Laboratory, Southeast University, Nanjing, 210096, China

    Wen Zhong, AnAn Lu & XiQi Gao

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  1. Wen Zhong
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  2. AnAn Lu
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  3. XiQi Gao
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Correspondence to Wen Zhong.

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Zhong, W., Lu, A. & Gao, X. MMSE SQRD based SISO detection for coded MIMO-OFDM systems. Sci. China Inf. Sci. 57, 1–10 (2014). https://doi.org/10.1007/s11432-013-4939-x

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  • DOI: https://doi.org/10.1007/s11432-013-4939-x

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