Title :
A modified CMA equalizer for the removal of length dependent local minima in AR channels
Author :
Escudero, Carlos J. ; Castedo, Luis ; Mitra, Urbashi
Author_Institution :
Dept. de Electron. y Syst., Univ. de La Coruna, Spain
fDate :
2/1/1999 12:00:00 AM
Abstract :
Finite-length CMA equalizers contain undesired minima termed length dependent local minima (LDLM), we note that for autoregressive (AR) channels, the equalizer output is correlated with a delayed input at these minima, this property is then used to modify the CMA cost function and remove the LDLM in AR channels
Keywords :
autoregressive processes; blind equalisers; correlation methods; delays; interference suppression; intersymbol interference; telecommunication channels; AR channels; ISI reduction; autoregressive channels; blind channel equalization; correlated equalizer output; cost function; delayed input; finite-length CMA equalizers; intersymbol interference; length dependent local minima removal; modified CMA equalizer; Adaptive algorithm; Adaptive equalizers; Blind equalizers; Cost function; Delay; Interference cancellation; Intersymbol interference; Robustness; Signal processing; Stochastic processes;
Journal_Title :
Signal Processing, IEEE Transactions on
