Nonlinear Parallel Interference Cancellation for Multiuser DS–CDMA Systems in Non-Gaussian Noise

S. Sánchez-Urrieta, V.Y. Kontorovich, and M. Lara (Mexico)

Keywords

DS-CDMA, PIC, Non-gaussian noise, multiuser detector.

Abstract

In this paper, we propose a novel multi-user detector that mitigates the MAI and diminishes the effects of the nongaussian noise in a DS-CDMA system through nonlinear parallel interference cancellation (PIC) techniques. Results obtained by simulation show that the proposed detector significantly improves the performance when compared with a simple PIC. Even more, it improves the performance of the single user system that uses a detector designed for gaussian noise. All the improvements are at the cost of only a slight increase in the implementation complexity.

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