DocumentCode
1146303
Title
Low-complexity sphere decoding for detection of OFDM systems in doubly-selective fading channels
Author
Liang, Yun ; Zhang, Qi ; Liu, Zhe ; Shu, Frank ; Berber, Stevan
Author_Institution
Dept. of Electron. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Volume
45
Issue
15
fYear
2009
Firstpage
797
Lastpage
798
Abstract
A low-complexity detection scheme consisting of a sphere decoder and a parallel interference cancellation (PIC) equaliser is proposed for OFDM systems in doubly-selective fading channels. Theoretical analysis and simulation results show that this detection scheme substantially improves the symbol error rate performance of OFDM systems compared with the traditional PIC equaliser while requiring lower complexity at moderate and high signal-to-noise ratios.
Keywords
OFDM modulation; decoding; equalisers; error statistics; fading channels; interference suppression; modulation coding; radiofrequency interference; signal detection; OFDM system; PIC equaliser; doubly-selective fading channel; low-complexity detection scheme; parallel interference cancellation; sphere decoder; symbol error rate;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2009.0158
Filename
5173127
Link To Document