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CLC number: TN911.22

On-line Access: 2013-01-03

Received: 2012-06-27

Revision Accepted: 2012-10-23

Crosschecked: 2012-12-03

Cited: 2

Clicked: 4859

Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE C 2013 Vol.14 No.1 P.30-41

http://doi.org/10.1631/jzus.C1200207


An LDPC coded cooperative MIMO scheme over Rayleigh fading channels with unknown channel state information


Author(s):  Shun-wai Zhang, Feng-fan Yang, Lei Tang

Affiliation(s):  College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Corresponding email(s):   zhshwa@163.com, yffee@nuaa.edu.cn, tanglei811019@163.com

Key Words:  Cooperative multiple-input multiple-output (MIMO), Repeat-accumulate (RA) codes, Bilayer Tanner graph, Spatio-temporal recursive least squares (ST-RLS) algorithm, Joint ‘, Min-Sum’, iterative decoding


Shun-wai Zhang, Feng-fan Yang, Lei Tang. An LDPC coded cooperative MIMO scheme over Rayleigh fading channels with unknown channel state information[J]. Journal of Zhejiang University Science C, 2013, 14(1): 30-41.

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author="Shun-wai Zhang, Feng-fan Yang, Lei Tang",
journal="Journal of Zhejiang University Science C",
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Abstract: 
This paper describes a coded cooperative multiple-input multiple-output (MIMO) scheme, where structured low-density parity-check (LDPC) codes belonging to a family of repeat-accumulate (RA) codes are employed. The outage probability of the scheme over Rayleigh fading channels is deduced. In an unknown channel state information (CSI) scenario, adaptive transversal filters based on a spatio-temporal recursive least squares (ST-RLS) algorithm are adopted in the destination to realize receive diversity gain. Also, a joint ‘;min-Sum’; iterative decoding is effectively carried out in the destination. Such a decoding algorithm agrees with the bilayer Tanner graph that can be used to fully characterize two distinct structured LDPC codes employed by the source and relay. Simulation results verify the effectiveness of the adopted filter in the coded cooperative MIMO scheme. Theoretical analysis and numerical simulations show that the LDPC coded cooperative MIMO scheme can well combine cooperation diversity, multi-receive diversity, and channel coding gains, and clearly outperforms coded noncooperation schemes under the same conditions.

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

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