Correlation Reduction Precoding for Joint Decoding in Overloaded MIMO-OFDM System on Rician Channel

Tatsuro Yabe, Yukitoshi Sanada

    Research output: Contribution to journalArticle

    Abstract

    This paper presents a correlation reduction precoding scheme for joint decoding in an overloaded multiple input multiple output (MIMO)-orthogonal frequency division multiplexing system. In the overloaded MIMO system, the number of receive antenna elements is less than that of transmit antenna elements. Through joint maximum likelihood (ML) decoding a frequency diversity suppresses the BER degradation owing to the spatial multiplexing of signal streams. On a Rician channel, the correlation among coded symbols deteriorates the performance of the joint ML decoding. Thus, this paper proposes the precoding scheme that reduces the correlation on the Rician channel. Numerical results obtained through computer simulation show that the proposed scheme improves the BER by a factor of 1/10 on the Rician channel with a Rician factor of 10.

    Original languageEnglish
    Pages (from-to)3785-3798
    Number of pages14
    JournalWireless Personal Communications
    Volume96
    Issue number3
    DOIs
    Publication statusPublished - 2017 Oct 1

    Keywords

    • Joint decoding
    • OFDM
    • Overloaded MIMO
    • Spatial multiplexing modulation

    ASJC Scopus subject areas

    • Computer Science Applications
    • Electrical and Electronic Engineering

    Fingerprint Dive into the research topics of 'Correlation Reduction Precoding for Joint Decoding in Overloaded MIMO-OFDM System on Rician Channel'. Together they form a unique fingerprint.

  • Cite this