Effective Order Of Implicit Diversity In The Performance Of CDMA In Indoor Radio Channels

Abstract

This paper addresses different methods for calculation of the average error rate of a BPSK modulated direct-sequence spread spectrum (DS-SS) system in the presence of multi-user and multipath interference and AWGN. It is shown that the performance of such systems can be approximated using certain parameters derived from the channel model. The performance of the system in a simulated channel model is compared with previously published methods for performance analysis [5,6, lo]. Improvements to this approximation are proposed which show close agreement with the results of computer simulations.