Soft decision-directed blind equalization

Author

Jinbiao, Xu ; Fulong, Ma ; Yumin, Wang

Author_Institution

Sch. of Telecommun. Eng., Xidian Univ., Xi´´an, China

Volume

1

fYear

1996

Firstpage

32

Abstract

Blind equalization techniques based on maximizing the a-posterior probability density function (p.d.f) are investigated and a novel soft decision-directed (SDD) algorithm is proposed. The new algorithm can achieve the faster convergence speed and smaller residual intersymbol interference (ISI). The blind decision feedback equalizer using soft DD algorithm is also presented, which leads to superior performance than that of the linear equalizer. Simulation results confirm the effectiveness of the proposed techniques

Keywords

convergence of numerical methods; decision feedback equalisers; fading; intersymbol interference; multipath channels; probability; pulse amplitude modulation; quadrature amplitude modulation; ISI; PAM; PDF; QAM; blind decision feedback equalizer; convergence speed; fading multipath channels; intersymbol interference; performance; probability density function; simulation results; soft decision directed algorithm; soft decision directed blind equalization; Blind equalizers; Clustering algorithms; Convergence; Decision feedback equalizers; Electric breakdown; Finite impulse response filter; Intersymbol interference; Laboratories; Nonlinear equations; Probability density function;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, 1996., 3rd International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-2912-0

Type

conf

DOI

10.1109/ICSIGP.1996.566965

Filename

566965