Inter-path interference cancellation for multipath searching in WCDMA system
QU Fu-ping, Pla Information · Journal of Chongqing University of Posts and Telecommunications · 2008
A new scheme of muhipath interference cancellation is introduced for(WCDMA) DS/SS communications.The distance between two paths may very close in real environment.Since the old method doesnt considering IPI(Inter-path Interference) caused by pulse shape filter,this will cause offset with the real path location,even resuh in a phenomenon that a larger SIR path cover up a smaller one.As a result,the old algorithm can not provide satisfactory performance.It may give rise to too many false alarms or result in low detection probability.A multipath searching method based on inter-path interference cancellation is introduced.Analysis shows that this method has excellent practicability.