Joint maximum likelihood decoding with limited number of receive antennas in overloaded MIMO-OFDM system

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This paper presents a joint decoding scheme for block coded signals in an overloaded multiple-input multiple-output (MIMO)-OFDM system. In a normal MIMO-OFDM system, the number of the transmit antenna is the same as that of the received antenna. In the conventional MIMO system, symbol detection is carried out over the signals received by multiple antenna elements and is separated from decoding. However, in order to increase the throughput of the system, a more number of antenna elements is required, which leads to larger power consumption owing to additional radio frequency (RF) units. Instead of splitting detection and decoding, in this paper, a joint maximum likelihood (ML) decoding scheme in an overloaded MIMO-OFDM system is presented. Based on ideal interleaving, independence among coded symbols spread over subcarriers is assumed. As an example of the proposed system, bit error rate performance of Hamming coded and spatially multiplexed signals with the joint ML decoding on a Rayleigh fading channel is investigated. Furthermore, a complexity reduction scheme of the joint ML decoding is also evaluated through computer simulation and bit error performance with the proposed complexity reduction scheme is presented.

    Original languageEnglish
    Title of host publication2013 International Conference on Advanced Technologies for Communications, ATC 2013
    Pages323-327
    Number of pages5
    DOIs
    Publication statusPublished - 2013 Dec 1
    Event2013 International Conference on Advanced Technologies for Communications, ATC 2013 - Ho Chi Minh, Viet Nam
    Duration: 2013 Oct 162013 Oct 18

    Publication series

    NameInternational Conference on Advanced Technologies for Communications
    ISSN (Print)2162-1039
    ISSN (Electronic)2162-1020

    Other

    Other2013 International Conference on Advanced Technologies for Communications, ATC 2013
    CountryViet Nam
    CityHo Chi Minh
    Period13/10/1613/10/18

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Hardware and Architecture
    • Software

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  • Cite this

    Sanada, Y. (2013). Joint maximum likelihood decoding with limited number of receive antennas in overloaded MIMO-OFDM system. In 2013 International Conference on Advanced Technologies for Communications, ATC 2013 (pp. 323-327). [6698130] (International Conference on Advanced Technologies for Communications). https://doi.org/10.1109/ATC.2013.6698130