Channel-Tolerant OFDM System for an Underwater Acoustic Channel

As is well known, the robust and reliable acoustic communication in adverse littoral water is a very challenging task. Orthogonal frequency division multiplexing (OFDM) is a promising technique for achieving high speed rate and combating multi-path fading in underwater acoustic communication. In thi...

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Bibliographic Details
Published in2008 4th International Conference on Wireless Communications, Networking and Mobile Computing pp. 1 - 4
Main Authors Xiang Li, Da-Jun Sun, Cui-e Zheng
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2008
Subjects
Acoustical engineering
Bandwidth
Channel estimation
Educational institutions
Fading
Information retrieval
Intersymbol interference
OFDM modulation
Underwater acoustics
Underwater communication
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Summary:As is well known, the robust and reliable acoustic communication in adverse littoral water is a very challenging task. Orthogonal frequency division multiplexing (OFDM) is a promising technique for achieving high speed rate and combating multi-path fading in underwater acoustic communication. In this paper, the basic principle of OFDM system is firstly introduced. Then a channel estimation method based on pilot symbol assisted modulation (PSAM) is studied. Finally, the experiment results are presented to compare the channel estimation performance of three pilot patterns. It is concluded that the comb pilot pattern is not suitable for complex underwater acoustic channel.
ISBN:9781424421077
1424421071
ISSN:2161-9646
DOI:10.1109/WiCom.2008.223