THE IMPACT OF TIMING ERRORS ON THE PERFORMANCE OF LINEAR DS-CDMA RECEIVERS

In this paper, an asynchronous direct-sequence code-division multiple- access (DS-CDMA) communication system operating over an additive white Gaussian noise (AWGN) channel is considered. In many applications, th e near-far problem can be the limiting factor for the capacity of a DS -CDMA system. Several near-far resistan t receivers have, therefore, b een proposed (e.g., the decorrelating receiver). These receivers assum e perfect knowledge of the propagation delay from all users to the rec eiver. In practice, the delays are estimated and therefore subject to errors. The performance degradation these errors impose on linear dete ctors, especially the decorrelating detector, is the topic of this pap er.