Multiuser detection in multipath non-Gaussian channels

Abstract

This paper addresses the problem of multiuser detection in multipath fading code-division multiple-access (CDMA) channels with non-Gaussian noise. A robust multipath decorrelator is proposed to mitigate the multiple-access interference and the multipath interference, and to ameliorate non-Gaussian ambient noise. The performance of the proposed multiuser detector is assessed via computer simulations and compared with that of the linear multipath decorrelator and with that of the maximum-likelihood detector designed under the assumption of perfect knowledge of the channel fading coefficients.