Title :
A new decorrelation algorithm for a soft decision feedback blind equalizer
Author :
Krstic, Vladimir R. ; Petrovic, Zoran
Author_Institution :
Inst. Mihajlo Pupin, Beograd, Serbia
Abstract :
This paper proposes a new decorrelation algorithm for a soft decision feedback blind equalizer (soft DFE) based on a DFE switching structure model. The algorithm is developed using joint entropy maximization (JEM) framework suitable for introducing a desirable nonlinearity directly into the stochastic gradient algorithm. Simulation results have shown that an efficient decorrelation based on JEM algorithm provides a better convergence rate and switching robustness than the existing hard DFE solution.
Keywords :
blind equalisers; decorrelation; feedback; gradient methods; stochastic processes; decorrelation algorithm; joint entropy maximization framework; soft decision feedback blind equalizer; stochastic gradient algorithm; switching robustness; Blind equalizers; Decision feedback equalizers; Decorrelation; Entropy; Intersymbol interference; Robustness; Smoothing methods; Stochastic processes; Stochastic systems; Transversal filters; Joint entropy maximization decorrelator; soft decision feedback blind equalizer;
Conference_Titel :
Telecommunications in Modern Satellite, Cable and Broadcasting Services, 2005. 7th International Conference on
Print_ISBN :
0-7803-9164-0
DOI :
10.1109/TELSKS.2005.1572106
