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CLC number: TN929.5; TN911

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Received: 2007-11-23

Revision Accepted: 2008-02-22

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Journal of Zhejiang University SCIENCE A 2008 Vol.9 No.8 P.1090-1098


Enhanced cooperative packet retransmission employing joint cooperative diversity and symbol mapping diversity

Author(s):  Wei JI, Bao-yu ZHENG

Affiliation(s):  Electronic Engineering Department, Shanghai Jiao Tong University, Shanghai 200240, China; more

Corresponding email(s):   jiwei_1979@sjtu.edu.cn

Key Words:  Cooperative retransmission, Hybrid automatic repeat request (HARQ), Cooperative diversity, Symbol mapping diversity (SMD)

Wei JI, Bao-yu ZHENG. Enhanced cooperative packet retransmission employing joint cooperative diversity and symbol mapping diversity[J]. Journal of Zhejiang University Science A, 2008, 9(8): 1090-1098.

@article{title="Enhanced cooperative packet retransmission employing joint cooperative diversity and symbol mapping diversity",
author="Wei JI, Bao-yu ZHENG",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

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%T Enhanced cooperative packet retransmission employing joint cooperative diversity and symbol mapping diversity
%A Wei JI
%A Bao-yu ZHENG
%J Journal of Zhejiang University SCIENCE A
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%P 1090-1098
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%D 2008
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0720076

T1 - Enhanced cooperative packet retransmission employing joint cooperative diversity and symbol mapping diversity
A1 - Wei JI
A1 - Bao-yu ZHENG
J0 - Journal of Zhejiang University Science A
VL - 9
IS - 8
SP - 1090
EP - 1098
%@ 1673-565X
Y1 - 2008
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0720076

A joint cooperation diversity and symbol mapping diversity (SMD) strategy is proposed for cooperative packet retransmission system with high-order modulation such as 16QAM. Substantial SER/BER (symbol error rate/bit error rate) gains result from multiple packet transmissions over independent paths and distinct bit-to-symbol mappings for each packet transmission. The SER/BER performance of relay assisted retransmission system is analyzed. Simulation results show that the joint-diversity strategy can provide more BER gains than other relaying strategies (i.e., decode-and-forward and constellation rearrangement relaying strategies) when no relay makes a decision error; but if some relays make decision errors, the joint-diversity strategy outperforms other relaying strategies only when the relays are closer to the source than to the destination.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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