Interpretations and performances of linear reception in downlink TD-CDMA and multi-sensor extension

This paper deals with a TD-CDMA multi-user system downlink through a radio- mobile multipath channel, such as TDD-UMTS. We propose interpretations and equivalent models specific to such a multiple access mode, mostly via a fre quency approach. The expressions and performances of the classic linear mul ti-user detectors are then reformulated. Furthermore, performance computati on is applied to indoor and vehicular channel environments, showing the ben efit of joint detection and diversity reception with two or three sensors a t the mobile.