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Browse Journals & Magazines > Communications Letters, IEEE ...> Volume:14 Issue:9 Help

Sequential Pre-Coding for MIMO Hybrid ARQ

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4 Author(s)
Kim, J.W. ; Dept. of Electr. Eng., Korea Univ., Seoul, South Korea ; Kwak, B.J. ; Kwon, D.S. ; Kang, C.G.

While the conventional codebook is defined only for the initial transmission in the closed-loop MIMO system, this paper proposes a new retransmission structure with a sequence of multiple codebooks, rather than using a single identical codebook for every retransmission. The pre-coding matrices in each codebook are sequentially linked so that each one can be used for a sequential hybrid ARQ transmission attempt, without invoking any index feedback from the receiver. It has been shown that the proposed codebook structure provides a performance gain of more than 5dB over the conventional scheme in the long-term-static channel.

Published in:
Communications Letters, IEEE  (Volume:14 ,  Issue: 9 )

Date of Publication: September 2010

Page(s):
803 - 805
ISSN :
1089-7798
INSPEC Accession Number:
11559462
Digital Object Identifier :
10.1109/LCOMM.2010.072310.100171
Date of Publication :
03 August 2010
Date of Current Version :
30 September 2010
Issue Date :
September 2010
Sponsored by :
IEEE Communications Society

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