Input Parameters Optimization in Swarm DS-CDMA Multiuser Detectors

Date Added: Dec 2010
Format: PDF

In this paper, the uplink Direct Sequence Code Division Multiple Access (DS-CDMA) MultiUser Detection problem (MUD) is studied into heuristic perspective, named Particle Swarm Optimization (PSO). Regarding different system improvements for future technologies, such as high-order modulation and diversity exploitation, a complete parameter optimization procedure for the PSO applied to MUD problem is provided, which represents the major contribution of this paper. Furthermore, the performance of the PSO-MUD is briefly analyzed via Monte-Carlo simulations. Simulation results show that, after convergence, the performance reached by the PSO-MUD is much better than the conventional detector, and somewhat close to the single user bound (SuB