Turbo equalization of two-dimensional intersymbol interference channels using Gaussian belief propagation

Author

Lehmann, Frederic

Author_Institution

Dept. CITI, Inst. TELECOM, Evry, France

fYear

2010

fDate

14-19 March 2010

Firstpage

3182

Lastpage

3185

Abstract

We consider the equalization of two-dimensional intersymbol interference (2D ISI) channels. We propose a message passing algorithm based on Gaussian belief propagation (GaBP) to perform joint decoding and equalization. While in existing 2D equalizers the complexity is exponential in the length of the state-space, the complexity is only polynomial for the proposed algorithm. This enables to handle 2D channels with long memory with a tractable computational complexity.

Keywords

Gaussian processes; belief maintenance; computational complexity; equalisers; intersymbol interference; message passing; telecommunication channels; telecommunication computing; 2D intersymbol interference channels; Gaussian belief propagation; joint decoding; joint equalization; message passing; tractable computational complexity; turbo equalization; AWGN; Belief propagation; Computational complexity; Decision feedback equalizers; Intersymbol interference; Iterative algorithms; Maximum likelihood decoding; Message passing; Polynomials; Telecommunications; Gaussian belief propagation; intersymbol interference; turbo equalization; two- dimensional channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on

Conference_Location

Dallas, TX

ISSN

1520-6149

Print_ISBN

978-1-4244-4295-9

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2010.5496072

Filename

5496072