Abstract

In this paper, we propose a method for analysis of linear turbo equalization that makes use of extrinsic information transfer (EXIT) charts. Given channel knowledge and a time-invariant set of linear equalizer coefficients, evolution of soft information in the soft-input soft-output (SISO) equalizer can be estimated via analytically measuring the mutual information between the transmitted symbols and their estimated a priori values at the two end points of an EXIT chart Using this estimated equalizer EXIT chart and an empirically generated decoder EXIT chart, convergence analysis can be undertaken. In comparison with existing EXIT chart based methods, the proposed approach can significantly reduce the reliance on extensive computer simulation.

Original languageEnglish (US)
Pages (from-to)667-671
Number of pages5
JournalConference Record of the Asilomar Conference on Signals, Systems and Computers
Volume1
StatePublished - Dec 1 2003
EventConference Record of the Thirty-Seventh Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
Duration: Nov 9 2003Nov 12 2003

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Equalizers
Computer simulation

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications

Cite this

Convergence analysis for linear turbo equalization. / Lee, Seok Jun; Singer, Andrew C.

In: Conference Record of the Asilomar Conference on Signals, Systems and Computers, Vol. 1, 01.12.2003, p. 667-671.

Research output: Contribution to journalConference article

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AB - In this paper, we propose a method for analysis of linear turbo equalization that makes use of extrinsic information transfer (EXIT) charts. Given channel knowledge and a time-invariant set of linear equalizer coefficients, evolution of soft information in the soft-input soft-output (SISO) equalizer can be estimated via analytically measuring the mutual information between the transmitted symbols and their estimated a priori values at the two end points of an EXIT chart Using this estimated equalizer EXIT chart and an empirically generated decoder EXIT chart, convergence analysis can be undertaken. In comparison with existing EXIT chart based methods, the proposed approach can significantly reduce the reliance on extensive computer simulation.

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