Randomized space-time block coding with limited feedback

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Randomized space-time block coding with limited feedback

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International Conference On Communications And Mobile Computing archive
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly table of contents

Leipzig, Germany

SESSION: Cooperative Cognitive Networks workshop table of contents

Pages 522-526

Year of Publication: 2009

ISBN:978-1-60558-569-7

Authors

Xin He	Beijing University of Posts and Telecommunications Beijing, P.R. China
Tao Luo	Beijing University of Posts and Telecommunications Beijing, P.R. China
Jianfeng Li	Beijing University of Posts and Telecommunications Beijing, P.R. China
Guangxin Yue	Beijing University of Posts and Telecommunications Beijing, P.R. China
Hao Zhao	Beijing University of Posts and Telecommunications Beijing, P.R. China

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ACM: Association for Computing Machinery
: Wiley-Blackwell

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ACM New York, NY, USA

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ABSTRACT

In this paper, a decode-and-forward (DF) cooperative diversity scheme is considered for dynamic relay networks, where each node is equipped with a single antenna. A randomized space-time block coding (STBC) cooperative relaying scheme has been proposed to get spatial diversity gains without centralized control information. However, it can not get maximum diversity gain when the number of active relay nodes is small. In this paper, we propose a limited feedback scheme to improve the bit error rate (BER) performance of the randomized STBC scheme. Simulation results reveal that the proposed feedback scheme can achieve almost the same BER performance as the centralized STBC scheme in some channel conditions. In addition, it does not degrade the performance of the randomized STBC scheme even with a large feedback delay.

REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

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