Performance Analysis of Different Pilot-Symbol Patterns in Underwater Acoustic OFDM System

Author

Zhou, Feng ; Qiao, Gang ; Li, Na

Author_Institution

Coll. of Underwater Acoust. Eng., Harbin Eng. Univ., Harbin

fYear

2008

fDate

12-14 Oct. 2008

Firstpage

1

Lastpage

4

Abstract

The underwater acoustic channel is very complex where Doppler frequency offsets, narrow bandwidth, serious multi-path time delay interference and frequency selective deep fading obstruct the development of high speed and fidelity underwater data transmissions. Orthogonal Frequency Division Multiplexing (OFDM) is a kind of novel paralleling transmission technology. In this paper, we mainly discuss three different pilot structures in channel estimation in OFDM underwater acoustic communication system and analyze the performance of channel estimation based on different pilot structure by simulation.

Keywords

OFDM modulation; channel estimation; underwater acoustic communication; Doppler frequency offsets; channel estimation; frequency selective deep fading; multipath time delay interference; orthogonal frequency division multiplexing; pilot-symbol patterns; underwater acoustic communication; Analytical models; Bandwidth; Channel estimation; Data communication; Delay effects; Fading; Interference; OFDM; Performance analysis; Underwater acoustics;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on

Conference_Location

Dalian

Print_ISBN

978-1-4244-2107-7

Electronic_ISBN

978-1-4244-2108-4

Type

conf

DOI

10.1109/WiCom.2008.193

Filename

4678102