A new nonlinear equalizer for mobile radio channels

Author

Thielecke, J.

Author_Institution

Lehrstuhl fuer Nachrichtentech., Erlangen-Nurnberg Univ., West Germany

fYear

1990

fDate

3-6 Apr 1990

Firstpage

1667

Abstract

An adaptive nonlinear equalizer for time-dispersive mobile radio channels is introduced. The resulting equations show that it can be viewed as a soft decision feedback equalizer (DFE) and as an extension of the Kalman (hard) DFE introduced by S. McLaughlin et al. (1989). However, the derivation of the equalizer follows in its essential parts different ideas. The performance of the algorithm is compared with the performances of several other equalizers, including an optimal, fixed estimation delay equalizer, which can be set up easily using a state-space description of the communications channel

Keywords

equalisers; mobile radio systems; telecommunication channels; Kalman DFE; Kalman equalizer; adaptive nonlinear equalizer; fixed estimation delay equalizer; soft decision feedback equalizer; state-space channel; time-dispersive mobile radio channels; Communication channels; Data communication; Decision feedback equalizers; Delay estimation; Equations; Finite impulse response filter; Gaussian noise; Kalman filters; Land mobile radio; Maximum likelihood estimation; Nonlinear equations; State estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on

Conference_Location

Albuquerque, NM

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1990.115797

Filename

115797