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Robust adaptive channel estimation of OFDM systems in time-varying narrowband interference

  • Zhiguo Zhang*
  • , Shing Chow Chan
  • , Hui Cheng
  • *Corresponding author for this work
  • The University of Hong Kong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents an adaptive channel estimation algorithm for orthogonal frequency division multiplexing (OFDM) systems in the presence of narrowband interference (NBI). The performance of the conventional linear minimum mean square error (MMSE) estimator will degrade significantly in the presence of this narrowband interference. A new weighted recursive least M-estimate (RLM) algorithm is adopted in this paper for suppressing the adverse effect of time-varying narrowband interference to OFDM systems. Simulation results demonstrate the improved robustness of the proposed algorithm.

Original languageEnglish
Title of host publicationProceedings - IEEE International Symposium on Circuits and Systems 2005, ISCAS 2005
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1722-1725
Number of pages4
ISBN (Print)9780780388345
DOIs
StatePublished - 2005
Externally publishedYes
Event2005 IEEE International Symposium on Circuits and Systems, ISCAS 2005 - Kobe, Japan
Duration: 23 May 200526 May 2005

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Conference

Conference2005 IEEE International Symposium on Circuits and Systems, ISCAS 2005
Country/TerritoryJapan
CityKobe
Period23/05/0526/05/05

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