Title

A Maximum Likelihood Carrier Frequency Offset Correction Approach For Ofdm Systems Over Multipath Fading Channels

Keywords

Carrier frequency offset; Independent component analysis; Intercarrier interference; Maximum likelihood; Orthogonal frequency division multiplexing

Abstract

In Orthogonal Frequency Division Multiplexing (OFDM) systems. Carrier Frequency Offset (CFO) destroys the orthogonality between the subcarriers, and hence introduces Intercarrier Interference (ICI). In this paper, a Maximum Likelihood CFO Correction (ML-CFOC) approach is proposed to compensate for CFO. The ML-CFOC exploits the independence between the desired signals, and is based on a simplified Independent Component Analysis (ICA) algorithm. The proposed ML-CFOC approach is implemented successfully for OFDM systems over multipath fading channels without requiring a training sequence. Computer simulations are given, which illustrate the optimal performance of the ML-CFOC.

Publication Date

12-1-2006

Publication Title

WMSCI 2006 - The 10th World Multi-Conference on Systemics, Cybernetics and Informatics, Jointly with the 12th International Conference on Information Systems Analysis and Synthesis, ISAS 2006 - Proc.

Volume

5

Number of Pages

116-120

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

84867256375 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84867256375

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