The Adaptive MBER Multi-user Detection Algorithm for MIMO MC-CDMA Systems

Abstract

In recent years, MIMO MC-CDMA system was extensively studied, its uplink synchronization model using space-time block coding (STBC) is described in time-varying multi-path fading environment, a new multi-user detection algorithm based on MBER (minimum bit error rate) was proposed for it. The algorithm can be realized using kernel density estimation and gradient descent methods. Simulation results show that, comparing with the traditional MMSE-based detection algorithm, the new algorithm has better bit error performance in case of not increasing the computational complexity.