Use of the genetic algorithm to improve bit error rates in CDMA wireless communication systems

In code division multiple access (CDMA) communications systems multiple access interference limits the capacity of systems using conventional single user correlation or matched filter receivers. This paper considers multiuser detection from a combinatorial optimization viewpoint by implementing the genetic algorithm (GA) on the reverse link of an IS-95 CDMA system. Experimental results suggest that a GA multiuser detector provides an attractive alternative to other types of multiuser detectors with regard to the rate of convergence and improved bit error rates.