Locally optimum detection for DS-CDMA systems in non-Gaussian noise

Abstract

Experimental measurements have demonstrated that in real systems many physical communication channels are non-Gaussian. In this paper, we propose a novel multi-stage multi-user detector that mitigates the MAI and rejects the effects of the non-Gaussian noise in a DS-CDMA system. Results obtained by simulation show that the proposed detector significantly improves the performance of other multi-user detectors and even more it improves the single user bound for Gaussian noise at the cost of a slight increase in the implementation complexity.