Belief propagation over frequency selective fading channels

Mustafa N. Kaynak, Tolga M. Duman, Erozan M. Kurtas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Scopus citations

Abstract

In this paper, we propose an iterative belief propagation (BP) based equalizer for frequency selective fading channels as an alternative to the typically used maximum a-posteriori (MAP), Viterbi, or soft output Viterbi algorithm (SOVA) based equalizers. The proposed equalizer has a parallel structure unlike the trellis based equalizers and it is less complicated than the MAP equalizer. Via simulations we show that, over frequency selective fading channels, a BP based equalizer achieves the optimal maximum a-posteriori performance, even in the presence of the length 4 cycles. We also discuss the joint decoding of an outer error correcting code and the equalization of the frequency selective fading channel using a joint factor graph and a BP based equalizer.

Original languageEnglish (US)
Title of host publicationIEEE Vehicular Technology Conference
Pages1367-1371
Number of pages5
Volume60
Edition2
StatePublished - 2004
Event2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
Duration: Sep 26 2004Sep 29 2004

Other

Other2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security
CountryUnited States
CityLos Angeles, CA
Period9/26/049/29/04

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Kaynak, M. N., Duman, T. M., & Kurtas, E. M. (2004). Belief propagation over frequency selective fading channels. In IEEE Vehicular Technology Conference (2 ed., Vol. 60, pp. 1367-1371)