Performance Analysis of MC/DS CDMA System with Hybrid SC/MRC Diversity over Multi-path Fading Channels 


Vol. 29,  No. 7, pp. 748-755, Jul.  2004


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  Abstract

In this paper, the hybrid SC/MRC technique was applied to the MC/DS-CDMA system in the Nakagami-m multi-path fading environment. The applied scheme was compared with other cases when the MRC technique was applied and then performances were analyzed. The result of analysis showed that the performance of the applied system, whose number of branches (L) for the input diversity of each carrier wave was 3 and whose selected number of branches ( L c ) was 2, was better than that of the MRC technique when the L c of the MRC technique was 2. The performance of the applied system was lower than that of the MRC technique, when the L c of the MRC technique was 3. However, as the fading index was lowered, which means the telecommunication environment deteriorated, the performance of the hybrid SC/MRC-(2/3) diversity technique when L c of MRC technique was 3, was almost the same as that of the MRC technique. The hybrid SC/MRC- (2/3) diversity technique shows a similar performance to that of the MRC technique, when the L c of the MRC technique was 4. Therefore, it was confirmed that the MC/DS-CDMA system could reduce complexity and achieve similar performance to that of the MRC by applying the hybrid SC/MRC technique, which utilized the advantages of the SC technique and high performance of the MRC scheme, rather than the MRC diversity technique that requires bit synchronization, frequency of fading, and phase synchronization for every diversity branch

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  Cite this article

[IEEE Style]

W. Kim and J. Park, "Performance Analysis of MC/DS CDMA System with Hybrid SC/MRC Diversity over Multi-path Fading Channels," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 7, pp. 748-755, 2004. DOI: .

[ACM Style]

Won-Sub Kim and Jin-Soo Park. 2004. Performance Analysis of MC/DS CDMA System with Hybrid SC/MRC Diversity over Multi-path Fading Channels. The Journal of Korean Institute of Communications and Information Sciences, 29, 7, (2004), 748-755. DOI: .

[KICS Style]

Won-Sub Kim and Jin-Soo Park, "Performance Analysis of MC/DS CDMA System with Hybrid SC/MRC Diversity over Multi-path Fading Channels," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 7, pp. 748-755, 7. 2004.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880