On the performance of partial-response DS/SS systems in a specular multipath environment

Direct sequence spread spectrum systems using partial-response signals in a specular multipath environment are investigated. Instead of using the conventional precoder-decoder combination for non-spread partial-response signals, a RAKE receiver is employed to take advantage of the resolvability provided by wideband DS/SS signals and the inherent diversity of partial-response signals. The performance measure of interest is signal-to-interference ratio (SIR). Our results suggest partial-response signals perform well in an outdoor mobile DS/SS system with high chip rate. The technique developed in this paper can be extended to any type of partial-response signals