Title

A blind maximum likelihood carrier frequency offset correction approach for OFDM systems over multipath fading channels

Authors

Authors

Y. Liu;W. B. Mikhael

Comments

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Abbreviated Journal Title

Circuits Syst. Signal Process.

Keywords

carrier frequency offset; independent component analysis; maximum; likelihood; orthogonal frequency division multiplexing; SYNCHRONIZATION; Engineering, Electrical & Electronic

Abstract

In orthogonal frequency division multiplexing (OFDM) systems, carrier frequency offset (CFO) destroys the orthogonality between subcarriers and hence introduces intercarrier interference. In this paper, a maximum likelihood CFO correction (ML-CFOC) approach is proposed to compensate for the deleterious effects of CFO. The ML-CFOC method exploits the independence between the desired signals and is based on a novel simplified independent component analysis algorithm. The proposed ML-CFOC approach is successfully implemented for OFDM systems over multipath fading channels without requiring training sequences. Computer simulations are given to illustrate the optimal performance of the ML-CFOC.

Journal Title

Circuits Systems and Signal Processing

Volume

26

Issue/Number

1

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

43

Last Page

54

WOS Identifier

WOS:000245421300003

ISSN

0278-081X

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