Retracted: CDMA Multiuser Detection Based on Improved Particle Swarm Optimization

A kind of CDMA multiuser detection scheme based on improved discrete particle swarm optimization is put forward. The basic principle of particle swarm optimization algorithm is analyzed and is combined with the multiuser detection problem. Besides, the search mechanism of discrete particle swarm optimization algorithm is improved to some extent. Experimental simulation results show that the presented method is correct and effective, and the multi-user detector has better performance. The proposed scheme is more suitable for processing CDMA multiuser detection with large users, and provides a new solution for CDMA multiuser detection.