Virtual MIMO space division multiplexing for MC-CDMA

Koichi Adachi, Fumiyuki Adachi, Masao Nakagawa

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

    Abstract

    To increase the data rate without signal bandwidth expansion, a combination of MC system with multiple-input multiple-output (MIMO)-space division multiplexing (SDM) is attractive. MIMO-SDM transmission performance is governed by min {Nt, Nr}, where Nt and Nr are the numbers of transmit and receive antennas, respectively. For downlink transmission, many receive antennas cannot be equipped at a mobile station due to space limitation. Therefore, the achievable data rate is limited by the number of receive antennas. In this paper, we propose a virtual MIMO-SDM for multi-carrier-code division multiple access (MC-CDMA) that can use the signals received via different propagation paths as virtual receive antennas. The equivalent number of receive antennas can be increased by a factor of the number of distinct paths of the channel. We confirm, by computer simulation, the effectiveness of virtual MIMO-SDM in a frequency-selective fading channel.

    Original languageEnglish
    Title of host publicationProceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
    DOIs
    Publication statusPublished - 2009 Dec 1
    Event2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall - Anchorage, AK, United States
    Duration: 2009 Sep 202009 Sep 23

    Other

    Other2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
    Country/TerritoryUnited States
    CityAnchorage, AK
    Period09/9/2009/9/23

    Keywords

    • MC-CDMA
    • MIMO
    • Phase rotation

    ASJC Scopus subject areas

    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

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