Joint weighted least squares estimation of frequency and timing offset for OFDM systems over fading channels

Pei Yun Tsai, Hsin Yu Kang, Tzi Dar Chiueh

Research output: Contribution to journalConference articlepeer-review

13 Scopus citations

Abstract

This paper presents an algorithm for joint estimation of carrier frequency offset and timing frequency offset in orthogonal frequency division multiplexing (OFDM) systems. A weighted least squares algorithm based on a pilot-aided scheme is proposed. The algorithm operates near the Cramér-Rao bound in the variance of estimation errors. Simulations of several estimation algorithms in a multipath fading channel show that this algorithm provides the most accurate estimation in both the carrier frequency offset and the timing frequency offset.

Original languageEnglish
Pages (from-to)2543-2547
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume57
Issue number4
StatePublished - 2003
Event57th IEEE Semiannual Vehicular Technology Conference (VTC2003) - Jeju, Korea, Republic of
Duration: 22 Apr 200325 Apr 2003

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