Title :
Transform-selective interference suppression algorithm for spread-spectrum communications
Author :
Aromaa, Sami ; Henttu, Pertti ; Juntti, Markku
Author_Institution :
Centre for Wireless Commun., Univ. of Oulu, Finland
Abstract :
An adaptive method for suppressing interference with an unknown model is presented. The method is based on computation of several transforms in parallel and selecting the most suitable one depending on a priori unknown the interference type based on a compression gain (CG) metric, which is related to the interference concentration in the transform domain. It is also possible to estimate the a priori parameters required by some transforms. The method can be expanded to utilize an arbitrary number of transforms. It is shown through computer simulations that the CG is a good metric for choosing the proper domain for interference excision.
Keywords :
data compression; fast Fourier transforms; interference suppression; radiofrequency interference; spread spectrum communication; transform coding; a priori parameter estimation; adaptive method; compression gain metric; selective interference suppression algorithm; spread-spectrum communications; transform domain; AWGN; Arithmetic; Binary phase shift keying; Character generation; Computational complexity; Image coding; Interference suppression; Resonance light scattering; Spread spectrum communication; Wireless communication;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2004.839703
