Joint carrier frequency offset and impulse noise estimation for underwater acoustic OFDM with null subcarriers

Author

Haixin Sun ; Weijie Shen ; Zhaohui Wang ; Shengli Zhou ; Xiaoka Xu ; Yougan Chen

Author_Institution

Key Lab. of Underwater Acoust. Commun. & Marine Inf. Technol., Xiamen Univ., Xiamen, China

fYear

2012

fDate

14-19 Oct. 2012

Firstpage

1

Lastpage

4

Abstract

Multicarrier modulation in the form of orthogonal frequency division multiplexing (OFDM) has been actively studied for underwater acoustic communications. In this paper, we investigate the OFDM performance in the presence of impulse-like noises. We present one method that estimates the carrier frequency offset (CFO) and the impulse noise separately, based on existing approaches, and one method that estimates them jointly. Simulation results in both time-invariant and time-varying channels have verified the receiver performance.

Keywords

OFDM modulation; impulse noise; underwater acoustic communication; OFDM; carrier frequency offset; impulse noise estimation; impulse-like noises; multicarrier modulation; null subcarriers; orthogonal frequency division multiplexing; time-invariant channels; time-varying channels; underwater acoustic communications; Estimation; Interference; Joints; Noise; OFDM; Receivers; Underwater acoustics; Carrier frequency offset; compressed sensing; impulse noise; null subcarrier; underwater acoustic OFDM;

fLanguage

English

Publisher

ieee

Conference_Titel

Oceans, 2012

Conference_Location

Hampton Roads, VA

Print_ISBN

978-1-4673-0829-8

Type

conf

DOI

10.1109/OCEANS.2012.6404949

Filename

6404949