A Study of Channel Estimation in OFDM System Based on a Single Vector Sensor for Underwater Acoustic Communications

Author

Lv Yun-Fei ; Zheng Cui-e

Author_Institution

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

fYear

2008

fDate

12-14 Oct. 2008

Firstpage

1

Lastpage

4

Abstract

Channel estimation is an important procedure of coherent demodulation of OFDM system for underwater acoustic communications, by which the system performance is largely restricted. In this paper, the performance of three pilot patterns and their own application conditions are analyzed and compared. According to the simulation and experiment results, it is concluded that scatter pilot pattern is very suitable for OFDM system for underwater acoustic communications. In addition, vector hydrophone is also can be used to improve communication performance via joint processing of pressure and particle velocity.

Keywords

OFDM modulation; channel estimation; hydrophones; underwater acoustic communication; channel estimation; orthogonal frequency division multiplexing; scatter pilot pattern; single vector sensor; underwater acoustic communications; vector hydrophone; Acoustic sensors; Channel estimation; Demodulation; OFDM; Pattern analysis; Performance analysis; Sensor systems; System performance; Underwater acoustics; Underwater communication;

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.2008.226

Filename

4678135