OFDM transform-domain channel estimation based on MMSE for underwater acoustic channels

Author

Zhang, Yonghuai ; Sun, Haixin ; Xu, Fang ; Wang, Deqing

Author_Institution

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

fYear

2008

Firstpage

177

Lastpage

181

Abstract

In this paper, we present a method of transform-domain channel estimation for orthogonal frequency division multiplexing (OFDM). The estimator based on minimum mean squared error (MMSE), and a process of FFT and IFFT is added. The system has been tested in a real underwater acoustic channel - the experimental pool in Xiamen University. The experimental result shows that the transform-domain channel estimation has improved the performance of the OFDM system in underwater acoustic channels.

Keywords

OFDM modulation; channel estimation; fast Fourier transforms; least mean squares methods; underwater acoustic communication; FFT; IFFT; MMSE; OFDM transform-domain channel estimation; minimum mean squared error; orthogonal frequency division multiplexing; underwater acoustic channels; Acoustic propagation; Channel estimation; DSL; Digital video broadcasting; Fading; OFDM; Underwater acoustics; Underwater communication; Wireless LAN; Wireless communication; Channel estimation; MMSE; OFDM; Transform-domain;

fLanguage

English

Publisher

ieee

Conference_Titel

Anti-counterfeiting, Security and Identification, 2008. ASID 2008. 2nd International Conference on

Conference_Location

Guiyang

Print_ISBN

978-1-4244-2584-6

Electronic_ISBN

978-1-4244-2585-3

Type

conf

DOI

10.1109/IWASID.2008.4688377

Filename

4688377