Adaptive Interference Cancellation with Diversity Combining for a Ds-cdma System in Rayleigh Fading

In this work, we propose a new signal deteclion scheme for a DS-CDMA system in frequencyjlat Rayleigh fading channels. The proposed detector exploits the space diversity and the adaptive interference cancellation to mitigate the effects of both channel fading and multiple-access interference. It consists of L diversity antennas, L adaptive interference cancellers (one for each diversity branch), and a divers@ combiner. A diversity combining method considered in this work iS just a kind of simple selection combining. Simulation results show that for a moderate loading of the system a signtjicant performance improvement can be achieved from using the proposed detector with diversig order of only two.