Multi-User Detection for Spatial Modulation via Structured Approximate Message Passing

X. Meng, S. Wu, L. Kuang, David Huang, J. Lu

    Research output: Contribution to journalArticlepeer-review

    24 Citations (Scopus)


    © 2016 IEEE.In this letter, we propose an efficient structured approximate message passing (Str-AMP) detector for multi-user spatial modulation systems. Str-AMP consists of two steps in each iteration. First, a decoupling operation is performed in the same way as AMP. Then, at the denoising step, to exploit the structured sparsity of SM signals, Str-AMP computes each element of SM signals using not only its own statistics but also those of its neighboring elements belonging to the same user. Since Str-AMP maintains scalar message passing, it is computationally efficient. Simulation results on various settings demonstrate the superiority of the proposed Str-AMP in terms of both uncoded and coded bit error rate performance.
    Original languageEnglish
    Article number7486024
    Pages (from-to)1527-1530
    Number of pages4
    JournalIEEE Communications Letters
    Issue number8
    Publication statusPublished - Aug 2016


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