Title :
Jammer mitigation in DS-CDMA array system using independent component analysis
Author :
Ristaniemi, Tapani ; Raju, Karthikesh ; Karhunen, Juha
Author_Institution :
Dept. of Math. Inf. Technol., Jyvaskyla Univ., Finland
Abstract :
In this paper we consider blind interference mitigation in direct sequence spread spectrum communication system under intentional jamming. Belouchrani et al. (2000) present a general framework in which blind source separation (BSS) techniques are utilized to enhance conventional detection. However, only second order statistics were utilized which makes the scheme vulnerable to temporally uncorrelated information or jamming signals. In this paper we remove this disadvantage by utilizing BSS based on independent component analysis (ICA). Numerical examples are given to evaluate achieved performance gains
Keywords :
array signal processing; cellular radio; code division multiple access; direction-of-arrival estimation; interference suppression; jamming; spread spectrum communication; statistical analysis; BSS techniques; DS-CDMA array system; ICA; blind interference mitigation; blind source separation; cellular communication; direct sequence spread spectrum communication; independent component analysis; intentional jamming; jammer mitigation; performance; Bandwidth; Blind source separation; Frequency; Independent component analysis; Interference; Jamming; Multiaccess communication; Source separation; Spread spectrum communication; Statistics;
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Conference_Location :
New York, NY
Print_ISBN :
0-7803-7400-2
DOI :
10.1109/ICC.2002.996851
