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Joint time domain channel and channel length estimation for OFDM system

  • Harbin Institute of Technology

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

Abstract

A joint channel impulse response (CIR) and channel length estimation method based on the correlation between the pilot signal with the received signal with cyclic prefix (CP) information is proposed. The proposed method is more efficient for OFDM systems with CP. The noise reduction is processed by taking the time averaging of two CIRs which can be determined by using the channel length information. Moreover, an effective channel length estimation method is also proposed without adding the complexity. The analysis and the simulation results show that the mean square error (MSE) and bit error rate (BER) performance of the proposed method is much better than the conventional correlation estimation (CCE) method both in the case with 16QAM and QPSK modulation schemes under the same conditions. Moreover, the BER performance of the joint method ia more closely to that of the ideal channel state information (CSI).

Original languageEnglish
Title of host publication2007 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, Conference Proceedings, PACRIM
Pages605-608
Number of pages4
DOIs
StatePublished - 2007
Event2007 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, PACRIM - Victoria, BC, Canada
Duration: 22 Aug 200724 Aug 2007

Publication series

NameIEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings

Conference

Conference2007 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, PACRIM
Country/TerritoryCanada
CityVictoria, BC
Period22/08/0724/08/07

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