DocumentCode
3527112
Title
Estimation and compensation of Doppler effect using variable sub-carrier spacing in multiband UAC OFDM systems
Author
Ahmed, Sadia ; Arslan, Huseyin
Author_Institution
Dept. of Electr. Eng., Univ. of South Florida, Tampa, FL, USA
fYear
2010
fDate
20-23 Sept. 2010
Firstpage
1
Lastpage
4
Abstract
Doppler shift causes loss of orthogonality in Orthogonal Frequency Division Multiplexing (OFDM), which in turn may severely degrade receiver performance. In high data rate underwater acoustic communication (UAC), the effect of Doppler varies considerably over OFDM subcarriers. This paper will propose an algorithm to estimate the varying effects of Doppler shift over subcarriers and to avoid/mitigate the ICI produced by such effects using variable sub-carrier spacing in multiband OFDM.
Keywords
Doppler shift; OFDM modulation; intercarrier interference; interference suppression; underwater acoustic communication; Doppler effect compensation; ICI; UAC; multiband OFDM systems; orthogonal frequency division multiplexing; underwater acoustic communication; variable subcarrier spacing; Algorithm design and analysis; Doppler shift; OFDM; Oceans; Simulation; Underwater acoustics;
fLanguage
English
Publisher
ieee
Conference_Titel
OCEANS 2010
Conference_Location
Seattle, WA
Print_ISBN
978-1-4244-4332-1
Type
conf
DOI
10.1109/OCEANS.2010.5663947
Filename
5663947
Link To Document