Joint OSIC and Soft ML Decoding Scheme for Coded Layered Space-Time OFDM Systems 


Vol. 33,  No. 5, pp. 487-493, May  2008


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  Abstract

In this paper, we consider coded layered space-time architecture in MIMO-OFDM channels. Vertical Bell Lab Layered Space-Time (V-BLAST) scheme employing ordered successive interference cancellation (OSIC) algorithm provides very high spectral efficiency with low computational complexity. However, the error propagation is a major drawback constraining the overall performance of the V-BLAST system significantly. Based on this problem, we derive an improved detector using soft bit log-likelihood ratio (LLR) value. Simulation results show that the proposed detector outperforms the conventional V-BLAST scheme under spatially uncorrelated as well as correlated fading channels.

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  Cite this article

[IEEE Style]

H. J. Lee, J. Chung, S. Park, S. Lee, "Joint OSIC and Soft ML Decoding Scheme for Coded Layered Space-Time OFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 5, pp. 487-493, 2008. DOI: .

[ACM Style]

Hye Jeong Lee, Jaeho Chung, Se-Jun Park, and Seong-Choon Lee. 2008. Joint OSIC and Soft ML Decoding Scheme for Coded Layered Space-Time OFDM Systems. The Journal of Korean Institute of Communications and Information Sciences, 33, 5, (2008), 487-493. DOI: .

[KICS Style]

Hye Jeong Lee, Jaeho Chung, Se-Jun Park, Seong-Choon Lee, "Joint OSIC and Soft ML Decoding Scheme for Coded Layered Space-Time OFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 5, pp. 487-493, 5. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880