Modified decision feedback methods for OFDM channel tracking

Shiu Hui Lee, Chien Chun Cheng, Dah Chung Chang

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

1 Scopus citations

Abstract

In an orthogonal frequency division multiplexing (OFDM) system, part of bandwidth is occupied by pilot symbols for time-varying channel estimation. In order to reduce the period of the training sequence while improving bandwidth efficiency, we study new time-domain channel tracking algorithms with a modified decision feedback loop. In company with the channel tracking algorithms, some decision error detectors and error concealment methods are proposed to reduce the error probability for avoiding decision error propagation. In our simulations, we compare the performance of the proposed decision error detectors and error concealment methods to show the efficiency of the proposed algorithms in time-varying channels.

Original languageEnglish
Title of host publication2008 International Conference on Communications, Circuits and Systems Proceedings, ICCCAS 2008
Pages268-272
Number of pages5
DOIs
StatePublished - 2008
Event2008 International Conference on Communications, Circuits and Systems, ICCCAS 2008 - Xiamen, Fujian Province, China
Duration: 25 May 200827 May 2008

Publication series

Name2008 International Conference on Communications, Circuits and Systems Proceedings, ICCCAS 2008

Conference

Conference2008 International Conference on Communications, Circuits and Systems, ICCCAS 2008
Country/TerritoryChina
CityXiamen, Fujian Province
Period25/05/0827/05/08

Fingerprint

Dive into the research topics of 'Modified decision feedback methods for OFDM channel tracking'. Together they form a unique fingerprint.

Cite this