Performance improvement by frequency-domain interleaving for OFDM/TDM using MMSE-FDE in a wireless channel

Haris Gacanin, Fumiyuki Adachi

    研究成果: Article査読

    1 被引用数 (Scopus)

    抄録

    The use of frequency-domain interleaving on a frame-byframe basis for orthogonal frequency division multiplexing (OFDM) combined with time division multiplexing (OFDM/TDM) is presented. In conventional OFDM, FDE is not designed to exploit the channel frequencyselectivity and consequently, the frequency diversity gain cannot be obtained. To further improve the bit error rate (BER) performance of conventional OFDM an interleaving technique may be applied, but FDE cannot be fully exploited. In this letter, the OFDM/TDM signal (i.e., several concatenated OFDM signals) frequency components are interleaved at the transmitter and then, minimum mean square error frequency-domain equalization (MMSE-FDE) is applied at the receiver to obtain a larger frequency diversity gain. It is shown that frequency-domain interleaving on a frame-by-frame basis for OFDM/TDM using MMSE-FDE achieves improved BER performance in comparison with conventional OFDM due to enhanced frequency diversity gain.

    本文言語English
    ページ(範囲)1813-1817
    ページ数5
    ジャーナルIEICE Transactions on Communications
    E92-B
    5
    DOI
    出版ステータスPublished - 2009 5月

    ASJC Scopus subject areas

    • ソフトウェア
    • コンピュータ ネットワークおよび通信
    • 電子工学および電気工学

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