Open Access

Robust OFDM System with ml-HIM Encoding

EURASIP Journal on Wireless Communications and Networking20062006:040264

DOI: 10.1155/WCN/2006/40264

Received: 10 April 2006

Accepted: 22 September 2006

Published: 25 December 2006

Abstract

Differential encoding is a widely used technique in the context of orthogonal frequency division multiplexing (OFDM) as an alternative to coherent channel estimation and equalization. In this paper, the performance of differential encoding using a multilag higher-order instantaneous moment (ml-HIM) in OFDM system is investigated. It is shown that by using proper order and lags, the ml-HIM decoder is capable to make a robust system against the phase distortion and the intercarrier interference (ICI) caused by phase distortion and frequency offset.

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Authors’ Affiliations

(1)
Department of Electrical Engineering, Shiraz University of Technology

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Copyright

© M.J. Dehghani. 2006

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.