DocumentCode :
2168885
Title :
Application of sphere decoding in intercarrier-interference reduction for OFDM systems
Author :
Kou, Y.J. ; Lu, W.-S. ; Antoniou, A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
fYear :
2005
fDate :
24-26 Aug. 2005
Firstpage :
360
Lastpage :
363
Abstract :
While fast variations of wireless channel characteristics cause intercarrier interference (ICI) in orthogonal frequency-division multiplexing systems, they also introduce frequency diversity, which can be exploited to improve the demodulation performance. An ICl-reduction algorithm is proposed based on a sphere decoding (SD) algorithm. By considering channel information, a new search strategy is developed to reduce the computational complexity of the SD algorithm. Design examples are presented which demonstrate that the proposed algorithm outperforms several existing algorithms in terms of BER performance.
Keywords :
OFDM modulation; channel coding; decoding; radiofrequency interference; wireless channels; OFDM systems; frequency diversity; intercarrier interference; intercarrier-interference reduction; orthogonal frequency-division multiplexing systems; sphere decoding algorithm; wireless channel; Decoding; OFDM;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, Computers and signal Processing, 2005. PACRIM. 2005 IEEE Pacific Rim Conference on
Print_ISBN :
0-7803-9195-0
Type :
conf
DOI :
10.1109/PACRIM.2005.1517300
Filename :
1517300
Link To Document :
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