A Method to Improve the Effect of Parallel Interference Cancellation Algorithm
LIU Songbai;The No.10th Research Institute of China Electronic Technology Group Corporation;
In a DS-CDMA communication system,the performance of bit error rate is restricted by multipleaccess interference( MAI). The Parallel interference cancellation algorithm can improve the performance of a CDMA system; However the performance of interference cancellation is easy to suffer from the bias of the multiple-access interference signal estimation. The traditional delay control scheme cannot realize the accurate delay control which is smaller than the system clock period,this paper introduces the Lagrange interpolation Algorithm to the interference cancellation algorithm,and the precise time delay control of the estimation of the multiple-access interference is realized. Simulation result shows that the improved Parallel interference cancellation scheme can effectively improve the performance of interference cancellation.
【CateGory Index】： TN97