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Journal Article A Novel QO-STBC Scheme with Linear Decoding for Three and Four Transmit Antennas
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Authors
Un Hee Park, Soo Young Kim, Kwang Jae Lim, Jing Li
Issue Date
2008-12
Citation
IEEE Communications Letters, v.12, no.12, pp.868-870
ISSN
1089-7798
Publisher
IEEE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/LCOMM.2008.081323
Project Code
08MM1500, Development of IMT-Advanced Proposals and WiBro Evolution Standards, Yoon Chul Sik
Abstract
In this letter, we propose a quasi-orthogonal spacetime block coding (QO-STBC) scheme with maximum likelihood (ML) decoding via simple linear detection. A conventional QOSTBC scheme can achieve the full rate, but at the cost of decoding complexity and diversity gain. These disadvantages of the conventional QO-STBC scheme are mainly a result of interference terms in the detection matrix. In this letter, we propose a new QO-STBC scheme which eliminates interference terms. The proposed method achieves improved diversity gain with respect to the conventional QO-STBC scheme, as well as a great reduction in decoding complexity. © 2008 IEEE.
KSP Keywords
Block coding, Diversity gain, Maximum likelihood (ML) decoding, Quasi-orthogonal, decoding complexity, linear detection, transmit antennas