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

fYear

2001

fDate

2001

Firstpage

202

Lastpage

205

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/SPAWC.2001.923882

Filename

923882