Title :
Narrowband Interference Suppression Using Undecimated Wavelet Packets in Direct- Sequence Spread-Spectrum Receivers
Author :
Pardo, Emilia ; Rodríguez-Hernández, Miguel A. ; Pérez-Solano, Juan J.
Author_Institution :
Inst. de Acustica, CSIC, Madrid
Abstract :
A new algorithm for narrowband interference suppression in direct-sequence spread-spectrum (DS-SS) communications is presented. The algorithm combines the undecimated wavelet packet transform (UWPT) with frequency shifts to confine the interference energy in a subband that is subsequently eliminated. Computer simulation shows a robust performance that appears to be independent of the interference frequency
Keywords :
code division multiple access; interference suppression; radio receivers; spread spectrum communication; wavelet transforms; computer simulation; direct-sequence spread-spectrum receivers; frequency shifts; interference energy; narrowband interference suppression; wavelet packet transform; Bandwidth; Filter bank; Frequency; Interference elimination; Interference suppression; Narrowband; Spread spectrum communication; Time domain analysis; Wavelet packets; Wavelet transforms; Direct-sequence spread spectrum (DS-SS); interference suppression; tree structuring algorithm (TSA); undecimated wavelet packets;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2006.877672
