Log-Likelihood Ratio Reflecting Channel Estimation Error for Systems with Decision-Directed Channel Estimation 


Vol. 42,  No. 6, pp. 1129-1134, Jun.  2017
10.7840/kics.2017.42.6.1129


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  Abstract

In decision-directed channel estimation schemes, performance degradation due to a channel estimation error is unevitable. To minimize the performance loss, the channel estimation error should be considered in generation of log-likelihood ratio (LLR). In this paper, we propose an LLR metric suitable for systems with decision-directed channel estimation schemes. Compared to the conventional scheme, the proposed scheme offers better bit error rate performance.

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  Cite this article

[IEEE Style]

D. Kang, H. Kim, K. Park, A. Lee, W. Oh, "Log-Likelihood Ratio Reflecting Channel Estimation Error for Systems with Decision-Directed Channel Estimation," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 6, pp. 1129-1134, 2017. DOI: 10.7840/kics.2017.42.6.1129.

[ACM Style]

Donghoon Kang, Haeun Kim, Kyeongwon Park, Arim Lee, and Wangrok Oh. 2017. Log-Likelihood Ratio Reflecting Channel Estimation Error for Systems with Decision-Directed Channel Estimation. The Journal of Korean Institute of Communications and Information Sciences, 42, 6, (2017), 1129-1134. DOI: 10.7840/kics.2017.42.6.1129.

[KICS Style]

Donghoon Kang, Haeun Kim, Kyeongwon Park, Arim Lee, Wangrok Oh, "Log-Likelihood Ratio Reflecting Channel Estimation Error for Systems with Decision-Directed Channel Estimation," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 6, pp. 1129-1134, 6. 2017. (https://doi.org/10.7840/kics.2017.42.6.1129)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880