A Study on Design of a Low Complexity TCM Decoder Combined with Space-Time Block Codes 


Vol. 29,  No. 3, pp. 324-330, Mar.  2004


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  Abstract

In this paper, we propose the TCM(Trellis coded modulation) decoding scheme that reduces the number of operations in branch metric with STBC(space time block codes) channel information and present the implementation results. The proposed TCM decoding scheme needs only 1 signal point in each TCM subset. Using bias point scheme, It detects the minimum distance symbol. The proposed TCM decoding scheme can reduce the branch metric calculations. In case of 16QAM 8 subset, the reduction ratio is about 50% and for 64QAM 8 subset, about 80% reduction can be obtained. The results of logic synthesis for the TCM and STBC decoder with the proposed scheme are 87.6K gate count.

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  Cite this article

[IEEE Style]

C. Park, Y. Jung, S. Lee, K. Kim, J. Kim, "A Study on Design of a Low Complexity TCM Decoder Combined with Space-Time Block Codes," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 3, pp. 324-330, 2004. DOI: .

[ACM Style]

Chulhyun Park, Yunho Jung, Seogoo Lee, Kunhoe Kim, and Jaeseok Kim. 2004. A Study on Design of a Low Complexity TCM Decoder Combined with Space-Time Block Codes. The Journal of Korean Institute of Communications and Information Sciences, 29, 3, (2004), 324-330. DOI: .

[KICS Style]

Chulhyun Park, Yunho Jung, Seogoo Lee, Kunhoe Kim, Jaeseok Kim, "A Study on Design of a Low Complexity TCM Decoder Combined with Space-Time Block Codes," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 3, pp. 324-330, 3. 2004.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880