Expectation propagation based iterative group wise detection for large-scale multiuser MIMO-OFDM systems

S. Wu, L. Kuang, Z. Ni, J. Lu, David Huang, Qinghua Guo

    Research output: Chapter in Book/Conference paperConference paper

    11 Citations (Scopus)

    Abstract

    © 2014 IEEE. For the spatially correlated multiuser MIMO-OFDM channels, the conventional iterative MMSE-SIC detection suffers from a considerable performance loss. In this paper, we use the factor graph framework to design robust detection algorithms by clustering a group of symbols to combat the spatial correlation and using the principle of expectation propagation to improve message passing. Furthermore, as the complexity of detection becomes one of the issues in the design of large-scale multiuser MIMO-OFDM systems, we propose a low-complexity approximate message-passing algorithm by opening the channel transition node, which eliminates the expensive matrix inversions involved in the MMSE-SIC based algorithms. Finally, numerical results are presented to verify the proposed algorithms.
    Original languageEnglish
    Title of host publicationIEEE Wireless Communications and Networking Conference
    Place of PublicationIstanbul, Turkey
    PublisherIEEE, Institute of Electrical and Electronics Engineers
    Pages236-241
    VolumeNA
    ISBN (Print)9781479930838
    DOIs
    Publication statusPublished - 2014
    Event2014 IEEE Wireless Communications and Networking Conference - Istanbul, Turkey
    Duration: 6 Apr 20149 Apr 2014

    Conference

    Conference2014 IEEE Wireless Communications and Networking Conference
    Abbreviated titleWCNC
    CountryTurkey
    CityIstanbul
    Period6/04/149/04/14

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  • Cite this

    Wu, S., Kuang, L., Ni, Z., Lu, J., Huang, D., & Guo, Q. (2014). Expectation propagation based iterative group wise detection for large-scale multiuser MIMO-OFDM systems. In IEEE Wireless Communications and Networking Conference (Vol. NA, pp. 236-241). IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/WCNC.2014.6951973