Title :
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
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;
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
DOI :
10.1109/IWASID.2008.4688377
