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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
- 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