Presentation 2014-11-12
A Study of Channel Equalization Using a Belief Propagation Algorithm
Masatomo SUGITA, Toshihiko NISHIMURA, Takeo OHGANE, Yasutaka OGAWA,
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Abstract(in English) Frequency-domain equalization is well known as a countermeasure for inter-symbol interference in a single carrier transmission system in terms of light weight and reasonably high performance. Frequency-domain turbo equalization with iterative processing has been developed as the extension to provide very high performance. In this paper, we consider a channel equalizer using a belief propagation (BP) algorithm in the time domain. In multiple-input multiple-output multi-path environments, it has been reported that this algorithm achieves a near-optimum BER performance. However, in single-input single-output (SISO) multi-path environments, the normal BP algorithm does not work. We show the problems and a solution against that. And we evaluate the BER performance with our proposal in a SISO multi-path environment.
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Keyword(in English) Belief Propagation / Log-likelihood Ratio / Interference Canceller / Equalization
Paper # RCS2014-203
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Committee RCS
Conference Date 2014/11/5(1days)
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Registration To Radio Communication Systems (RCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study of Channel Equalization Using a Belief Propagation Algorithm
Sub Title (in English)
Keyword(1) Belief Propagation
Keyword(2) Log-likelihood Ratio
Keyword(3) Interference Canceller
Keyword(4) Equalization
1st Author's Name Masatomo SUGITA
1st Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University()
2nd Author's Name Toshihiko NISHIMURA
2nd Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
3rd Author's Name Takeo OHGANE
3rd Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
4th Author's Name Yasutaka OGAWA
4th Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
Date 2014-11-12
Paper # RCS2014-203
Volume (vol) vol.114
Number (no) 295
Page pp.pp.-
#Pages 6
Date of Issue