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IEICE TRANSACTIONS on Communications

A Comparative Study on Time Domain Sequential Equalizer with MLD and MLSE Equalizer on MIMO Frequency Selective Channels

Satoshi NAKANOBU, Yasunori IWANAMI, Eiji OKAMOTO

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Summary :

In this paper, we investigate two receiver structures for spatially multiplexed transmission on MIMO frequency selective fading channels. Those receivers compensate the IAI (Inter-Antenna Interference) and ISI (Inter-Symbol Interference) in the time domain. We first propose the MIMO sequential equalizer in which the block of several receives symbols is processed symbol by symbol by MLD (Maximum Likelihood Detection). Next we investigate the MIMO MLSE (Maximum Likelihood Sequence Estimation) receiver in which the terminated block trellis is decoded by the Viterbi algorithm. The bit error rates of two time domain receivers are examined through computer simulations and we also compare their BER characteristics to those of the conventional MIMO SC-FDE.

Publication
IEICE TRANSACTIONS on Communications Vol.E93-B No.11 pp.3197-3202
Publication Date
2010/11/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E93.B.3197
Type of Manuscript
LETTER
Category
Wireless Communication Technologies

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