Title :
A Lattice Shalvi-Weinstein Algorithm for Blind Equalization
Author :
Bernardes, D.B. ; Miranda, Maria D. ; Silva, Magno T. M.
Author_Institution :
Pos-Graduacao em Engenharia Eletrica, Univ. Presbiteriana Mackenzie, Brazil
Abstract :
In blind equalization, the constant modulus algorithm (CMA) and Shalvi-Weinstein algorithm (SWA) present an unfavorable tradeoff between convergence rate and computational cost. Inspired in supervised order-recursive algorithms, we propose a lattice SWA, which has the number of operations per iteration of the equalizer order and maintains the SWA convergence rate. It presents a more robust behavior than that of SWA, avoiding numerical divergence when implemented in finite precision.
Keywords :
adaptive filters; blind equalisers; adaptive filters; blind equalization; constant modulus algorithm; lattice Shalvi-Weinstein algorithm; supervised order-recursive algorithms; Adaptive equalizers; Blind equalizers; Computational complexity; Computational efficiency; Convergence; Cost function; Lattices; Least squares approximation; Resonance light scattering; Robustness; Adaptive filters; Shalvi-Weinstein Algorithm; blind equalization; lattice structure; order-recursive algorithms;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0727-3
DOI :
10.1109/ICASSP.2007.367100
