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

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Author(s): Sylvie Kerou├ędan | Makram Touzri | Patrick Adde | Samir Saoudi

Journal: International Journal of Communications, Network and System Sciences
ISSN 1913-3715

Volume: 03;
Issue: 10;
Start page: 826;
Date: 2010;
Original page

Keywords: CDMA | Turbocode | Multi-User Detection | Turbo-CDMA

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.

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