A universal frequency offset estimator for OFDM applications

Authors:
Ming Ruan;Mark C. Reed;Zhenning Shi
Affiliations:
National ICT Australia, ACT, Australia;National ICT Australia, ACT, Australia;Alcatel Shanghai Bell, Shanghai, China
Venue:
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Year:
2009

Citing 4
Cited 1

Fundamentals of statistical signal processing: estimation theory

Fundamentals of statistical signal processing: estimation theory
Training symbol based coarse timing synchronization in OFDM systems

IEEE Transactions on Wireless Communications
Maximum likelihood synchronization for OFDM using a pilot symbol: algorithms

IEEE Journal on Selected Areas in Communications
Maximum likelihood synchronization for OFDM using a pilot symbol: analysis

IEEE Journal on Selected Areas in Communications

A hybrid integer carrier frequency offset estimator for practical OFDM systems

GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications

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Abstract

This paper studies fractional carrier frequency offset (CFO) estimation for orthogonal frequency-division multiplexing (OFDM) systems. In the IEEE 802.16 (WiMAX) standard, a training symbol structure with three highly correlated but not identical segments is specified. The existing CFO estimation methods require the segments in the training symbol to be identical, so cannot work for the generalized training structure. In this paper, we proposed a universal fractional CFO estimator to solve the problem. Both the analytical and numerical results are presented to confirm the performance of the proposed method.