Title :
Performance of PIE interference suppressor using FFT, DCT and ELT transformations in FH/DS communications
Author :
Henttu, Pertti ; Pouttu, Ari ; Raustia, Matti
Author_Institution :
Centre for Wireless Commun., Oulu Univ., Finland
Abstract :
We have studied the BER performance of a hybrid direct sequence frequency hopping (DS/FH) system with interference suppressor in an environment where a strong narrowband interference perturbs the desired DS signal. In this approach a transform domain, real time suppression method PIE (phase interference extractor) has been chosen. The original PIE utilized FFT as the transformation. In this study we compared the performance and computational complexity of the original FFT PIE to DCT PIE and ELT PIE
Keywords :
computational complexity; discrete cosine transforms; error statistics; fast Fourier transforms; frequency hop communication; interference suppression; radiofrequency interference; spread spectrum communication; BER performance; DCT; DS signal; ELT; FFT; FH/DS communications; PIE interference suppressor; computational complexity; hybrid direct sequence frequency hopping; narrowband interference; performance comparison; phase interference extractor; real time suppression method; transform domain method; Adaptive filters; Additive white noise; Bit error rate; Computational complexity; Discrete cosine transforms; Frequency; Interference suppression; Least squares approximation; Narrowband; Spread spectrum communication;
Conference_Titel :
EUROCOMM 2000. Information Systems for Enhanced Public Safety and Security. IEEE/AFCEA
Conference_Location :
Munich
Print_ISBN :
0-7803-6323-X
DOI :
10.1109/EURCOM.2000.874786
