DocumentCode
1419061
Title
Cancellation technique to reduce intercarrier interference in OFDM
Author
Sathananthan, K. ; Rajatheva, R.M.A.P. ; Slimane, S.B.
Author_Institution
Monash Univ., Clayton, Vic., Australia
Volume
36
Issue
25
fYear
2000
fDate
12/7/2000 12:00:00 AM
Firstpage
2078
Lastpage
2079
Abstract
Orthogonal frequency division multiplexing (OFDM) systems are sensitive to frequency errors, which cause intercarrier interference among subcarriers. A new cancellation method to reduce the effects of frequency offset errors is presented. The main feature is to map each data symbol ak which is to be transmitted onto a pair of non-adjacent subcarriers, with weightings +1 and -1, rather than to a single subcarrier. The carrier-to-interference ratio gain of the proposed method over normal OFDM varies between 10 to 30 dB. This method also offers a frequency diversity effect in a multipath fading channel
Keywords
OFDM modulation; diversity reception; errors; fading channels; interference suppression; multipath channels; radiofrequency interference; CIR; ICI suppression; OFDM systems; RFI; cancellation technique; carrier-to-interference ratio; frequency diversity effect; frequency errors; intercarrier interference; multipath fading channel; orthogonal FDM; orthogonal frequency division multiplexing; wireless systems;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20001456
Filename
891830
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