Multi-user detection employing BSS techniques in mobile communication systems

This paper presents a new technique for interference cancellation and joint detection in the up-link of CDMA systems based on blind source separation (BSS). BSS has been solved through different approaches, therefore a suitable algorithm for wireless multiple access system has been chosen and applied to the situation when multi-users are communicating with a single receiver at the base station in the presence of additive white Gaussian noise (AWGN) and flat fading conditions. All theoretical results are verified with numerous computer simulations. Simulation results show that the proposed technique dominates the conventional receiver and gives a comparable performance with the single user detector