Windowed DFT based pilot-symbol-aided channel estimation for OFDM systems in multipath fading channels

Baoguo Yang, Khaled Letaief, Roger S. Cheng, Zhigang Cao

Research output: Contribution to journalArticle

61 Citations (Scopus)


In this paper, we propose a windowed DFT based pilot-symbol-aided channel estimation method for Orthogonal Frequency Division Multiplexing (OFDM) systems. This method can reduce the aliasing error of the direct DFT based channel estimation method in the multipath fading channels that have non-sample-spaced path time delays. Furthermore, we compare the proposed channel estimator with the more complex MMSE channel estimator. The performance of the proposed method is close to the MMSE channel estimator.

Original languageEnglish
Pages (from-to)1480-1484
Number of pages5
JournalIEEE Vehicular Technology Conference
Publication statusPublished - 2000
Externally publishedYes


ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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