An Algorithm for Narrow-Band Interference Suppression in CDMA Communication System Based on Probability and Statistics Search

Author

Wenjun Lv ; Xiaoli Xi ; Yongxing Du

Author_Institution

Fac. of Autom. & Inf. Eng, Xi´an Univ. of Technol., Xi´an, China

fYear

2013

fDate

16-17 Nov. 2013

Firstpage

1

Lastpage

4

Abstract

CDMA communication system has a certain anti-interference performance, but when the interference is stronger, the performance and stability of system will descend obviously. In this paper, narrow-band interference suppression based on FFT transform is adopted to improving anti-interference performance of CDMA communication systems significantly. Probability and statistics search for interference signal is used in frequency domain, which increases the stability of anti-interference. This paper describes Mat lab simulation and FPGA implementation of the algorithm. Hardware experiments show that the algorithm can improve the performance of narrow-band interference suppression for the ordinary CDMA mobile phone about 25dB.

Keywords

code division multiple access; electromagnetic interference; fast Fourier transforms; mobile handsets; probability; statistics; CDMA communication system; FFT transform; mobile phone; narrow-band interference suppression; probability; statistics search; Frequency-domain analysis; Hardware; Interference suppression; Multiaccess communication; Probability; Transforms; CDMA; narrow-band interference suppression; probability and statistics;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Technology and Applications (ITA), 2013 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4799-2876-7

Type

conf

DOI

10.1109/ITA.2013.6

Filename

6709922