Error probability analysis for adaptive decision feedback equalizers under slowly fading multipath channels

Yih Ming Tsuie, Wen-Rong Wu

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

Abstract

It is very difficult to analyse the error probability of the adaptive decision feedback equalizer (DFE) when it is operated under a time-varying channel. A decision error not only propagates through the feedback filter affecting the future outputs, but also through the adaptive algorithm updating the tap weights towards a wrong direction. Most of the existing analysis works do not consider the error propagation effect in the adaptive algorithm. We specifically take this effect into account and analyze the error probability of the DFE under slowly fading channels. We consider the most widely used adaptive algorithm, namely, the least mean square (LMS) algorithm. Closed-form expressions are derived for the training mode as well as the decision-directed mode. Finally, the validity of the theoretical results are verified through computer simulations.

Original languageEnglish
Title of host publication2001 IEEE 3rd Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2001
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages118-121
Number of pages4
ISBN (Electronic)0780367200
DOIs
StatePublished - 1 Jan 2001
Event3rd IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2001 - Taoyuan, Taiwan
Duration: 20 Mar 200123 Mar 2001

Publication series

NameIEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
Volume2001-January

Conference

Conference3rd IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2001
CountryTaiwan
CityTaoyuan
Period20/03/0123/03/01

Keywords

  • Adaptive algorithm
  • Adaptive filters
  • Algorithm design and analysis
  • Decision feedback equalizers
  • Error analysis
  • Error probability
  • Fading
  • Least squares approximation
  • Output feedback
  • Time-varying channels

Fingerprint Dive into the research topics of 'Error probability analysis for adaptive decision feedback equalizers under slowly fading multipath channels'. Together they form a unique fingerprint.

  • Cite this

    Tsuie, Y. M., & Wu, W-R. (2001). Error probability analysis for adaptive decision feedback equalizers under slowly fading multipath channels. In 2001 IEEE 3rd Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2001 (pp. 118-121). [923860] (IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC; Vol. 2001-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SPAWC.2001.923860