Title
Newton-like minimum entropy equalization algorithm for APSK systems
Abstract
In this paper, we design and analyze a Newton-like blind equalization algorithm for the APSK system. Specifically, we exploit the principle of minimum entropy deconvolution and derive a blind equalization cost function for APSK signals and optimize it using Newton s method. We study and evaluate the steady-state excess mean square error performance of the proposed algorithm using the concept of energy conservation. Numerical results depict a significant performance enhancement for the proposed scheme over well established blind equalization algorithms. Further, the analytical excess mean square error of the proposed algorithm is verified with computer simulations and is found to be in good conformation. HighlightsFormulation of a Newton-like blind equalization algorithm for APSK system.Discussion on stationary points of the cost in joint impulse response domain.Discussion on equalizer's tracking performance in non-stationary environment.Evaluation of moments in closed-form using Nuttal Q-function.
Year
DOI
Venue
2014
10.1016/j.sigpro.2014.02.003
Signal Processing
Keywords
Field
DocType
newton s method
Impulse response,Mathematical optimization,Energy conservation,Equalization (audio),Control theory,Amplitude and phase-shift keying,Deconvolution,Algorithm,Stationary point,Blind equalization,Mathematics,Newton's method
Journal
Volume
Issue
ISSN
101
C
0165-1684
Citations 
PageRank 
References 
1
0.35
20
Authors
4
Name
Order
Citations
PageRank
Anum Ali110310.62
Shafayat Abrar2528.19
Azzedine Zerguine334351.98
Asoke K. Nandi494795.46