A Turbo Decoder Included in a Multi-User Detector: A Solution to be Retained

Sylvie Kerouédan; Makram Touzri; Patrick Adde; Samir Saoudi

doi:10.4236/ijcns.2010.310112

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A Turbo Decoder Included in a Multi-User Detector: A Solution to be Retained

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DOI: 10.4236/ijcns.2010.310112 4,171 Downloads 8,104 Views

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Sylvie Kerouédan, Makram Touzri, Patrick Adde, Samir Saoudi

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ABSTRACT

This paper deals with the presentation of different multi-user detectors in the Universal Mobile Telecommunications System (UMTS) context. The challenge is always to optimize the compromise between performance and complexity. Compared with the solution commonly used today, the rake detector, successive interference cancellation (SIC) detector has better performance despite its higher complexity. Our innovative solution proposes joining detector and channel turbo decoder to get a significant gain in terms of performance. Furthermore, when detection and decoding are implemented in a single function, complexity does not increase much.

KEYWORDS

CDMA, Turbocode, Multi-User Detection, Turbo-CDMA

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

S. Kerouédan, M. Touzri, P. Adde and S. Saoudi, "A Turbo Decoder Included in a Multi-User Detector: A Solution to be Retained," International Journal of Communications, Network and System Sciences, Vol. 3 No. 10, 2010, pp. 826-834. doi: 10.4236/ijcns.2010.310112.

References

[1]	M. Ammar, S. Saoudi and T. Chonavel, “Iterative Successive Interference Cancellation for Multiuser DS-CDMA Detectors in Multipath Channels,” Annales des Télécommunications, Vol. 57, No. 12, 2002, pp. 105-124.

[2]	S. Saoudi, M. Ammar and T. Chonavel, “Dispositif et Procédé de Décodage de Données AMRC, Système Correspondant,” Institut National de la Propriété Indu- strielle, Patent FR 03 14938, 2003.

[3]	M. Touzri, “étude d’implantation de Détecteurs Multi- utilisateurs CDMA: Application à l’UMTS,” PhD: Electronique: Institut TELECOM; TELECOM Bretagne, Université de Bretagne Occidentale: 2007, 2007telb0031. p. 130.

[4]	P. Patel and J. Holtzman, “Analysis of DS-CDMA Successive Interference Cancellation Scheme Using Correlations,” IEEE Globecom’93, Houston, TX, Vol. 1, 1993, pp. 76-80.

[5]	L. C. A. Hui and K. B. Letaief, “Successive Interference Cancellation for Multiuser Asynchronous DS-CDMA Detectors in Multipath Fading Links,” IEEE Transactions on Communications, Vol. 46, No. 3, 1998, pp. 384-391.

[6]	C. Berrou, A.Glavieux and P. Thitimajshima, “Near Shannon Limit Error-Correction Coding and Decoding Turbo Codes,” IEEE International Conference on Communications (ICC’93), Vol. 2, 1993, pp. 1064-1070.

[7]	C. Berrou, Ed., “Codes and Turbo Codes,” Springer, Germany, 2010.