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Erschienen in: Wireless Personal Communications 3/2017

02.09.2017

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

verfasst von: Tatsuro Yabe, Yukitoshi Sanada

Erschienen in: Wireless Personal Communications | Ausgabe 3/2017

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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.

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Metadaten
Titel
Correlation Reduction Precoding for Joint Decoding in Overloaded MIMO-OFDM System on Rician Channel
verfasst von
Tatsuro Yabe
Yukitoshi Sanada
Publikationsdatum
02.09.2017
Verlag
Springer US
Erschienen in
Wireless Personal Communications / Ausgabe 3/2017
Print ISSN: 0929-6212
Elektronische ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-017-4202-7

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