Title :
Adaptive narrow-band interference cancellation in DS-CDMA communications
Author :
Hou, Wen-Sheng ; Chen, Bor-Sen
Author_Institution :
Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
In the presence of narrowband interference (NBI), the performance of direct-sequence code-division multiple access (DS-CDMA) communication systems can be improved by using various interference cancellation schemes. A scheme of parallel interference cancellators (PIC), which includes a set of NBI cancellation filters and a set of multiple access interference (MAI) cancellation filters, is developed to improve the signal-to-interference ratio (SIR) and handle the MAI effect. In order to avoid performance deterioration due to the unreliable initial detection, a robust coefficient γ is introduced in our proposed design criterion
Keywords :
adaptive filters; cellular radio; code division multiple access; interference suppression; spread spectrum communication; DS-CDMA communications; MAI cancellation; SIR; adaptive interference cancellation; cancellation filters; cellular radio; direct-sequence code-division multiple access; multiple access interference; narrowband interference cancellation; parallel interference cancellators; signal-to-interference ratio; Detectors; Filters; Interference cancellation; Interference suppression; Mobile communication; Multiaccess communication; Multiple access interference; Narrowband; Noise cancellation; Spread spectrum communication;
Conference_Titel :
Wireless Communications, 2001. (SPAWC '01). 2001 IEEE Third Workshop on Signal Processing Advances in
Conference_Location :
Taiwan
Print_ISBN :
0-7803-6720-0
DOI :
10.1109/SPAWC.2001.923882
