Title :
Blind source separation based successive interference cancellation in the DS-CDMA uplink
Author :
Huovinen, Toni ; Ristaniemi, Tapani
Author_Institution :
Dept. of Math. Inf. Technol., Jyvaskyla Univ., Finland
Abstract :
Recent studies have found interference cancellation (IC) schemes employing blind source separation (BSS) methods to be promising competitors to conventional IC schemes in DS-CDMA reception, since they are able to mitigate both internal multiaccess interference and external interference. In this paper we introduce a new successive BSS based IC scheme for DS-CDMA uplink. The new scheme combines the benefits of existing BSS based schemes and conventional successive interference cancellation (SIC). Numerical experiments are given to illustrate a superiority of the successive BSS scheme compared to existing BSS schemes and conventional successive and parallel interference cancellation (PIC) schemes. A system with and without additional external interference, like adjacent channel interference or jamming, are considered.
Keywords :
adjacent channel interference; blind source separation; code division multiple access; interference suppression; jamming; mobile radio; radio links; spread spectrum communication; DS-CDMA uplink; blind source separation method; channel interference; internal multiaccess interference; parallel interference cancellation schemes; successive interference cancellation; AWGN; Blind source separation; Delay estimation; Information technology; Interchannel interference; Interference cancellation; Jamming; Multiaccess communication; Silicon carbide; Source separation;
Conference_Titel :
Control, Communications and Signal Processing, 2004. First International Symposium on
Print_ISBN :
0-7803-8379-6
DOI :
10.1109/ISCCSP.2004.1296560