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

    研究成果: Conference contribution

    抄録

    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.

    本文言語English
    ホスト出版物のタイトル2013 International Conference on Advanced Technologies for Communications, ATC 2013
    ページ323-327
    ページ数5
    DOI
    出版ステータスPublished - 2013 12月 1
    イベント2013 International Conference on Advanced Technologies for Communications, ATC 2013 - Ho Chi Minh, Viet Nam
    継続期間: 2013 10月 162013 10月 18

    出版物シリーズ

    名前International Conference on Advanced Technologies for Communications
    ISSN(印刷版)2162-1039
    ISSN(電子版)2162-1020

    Other

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

    ASJC Scopus subject areas

    • コンピュータ ネットワークおよび通信
    • ハードウェアとアーキテクチャ
    • ソフトウェア

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