Title :
Blind signal processing for impulsive noise channels
Author :
Kim, Namyong ; Byun, Hyung-Gi ; You, Young-Hwan ; Kwon, Kihyeon
Author_Institution :
Sch. of Electron., Inf. & Commun. Eng., Kangwon Nat. Univ., Chuncheon, South Korea
Abstract :
In this paper, a new blind signal processing scheme for equalization in fading and impulsive-noise channel environments is introduced based on probability density function matching method and a set of Dirac-delta functions. Gaussian kernel of the proposed blind algorithm has the effect of cutting out the outliers on the difference between the desired level values and impulse-infected outputs. And also the proposed algorithm has relatively less sensitivity to channel eigenvalue ratio and has reduced computational complexity compared to the recently introduced correntropy algorithm. According to these characteristics, simulation results show that the proposed blind algorithm produces superior performance in multi-path communication channels corrupted with impulsive noise.
Keywords :
blind source separation; computational complexity; eigenvalues and eigenfunctions; equalisers; fading channels; impulse noise; probability; Dirac-delta functions; Gaussian kernel; blind signal processing; channel eigenvalue ratio; computational complexity; correntropy algorithm; equalization; fading channel environments; impulse-infected outputs; impulsive noise channel environment; impulsive noise channels; multipath communication channels; probability density function matching method; Blind equalizers; Convergence; Cost function; Noise measurement; Probability density function; Signal processing algorithms; Blind signal processing; dirac-delta functions; equalization; impulsive noise; probability density function (PDF) matching;
Journal_Title :
Communications and Networks, Journal of
DOI :
10.1109/JCN.2012.6184548