DocumentCode
957715
Title
Estimation of co-channel nonlinear distortion and SNDR in wireless systems
Author
Gharaibeh, K.M. ; Gard, K.G. ; Steer, M.B.
Author_Institution
Hijawi Fac. for Eng. Technol., Yarmouk Univ., Irbid
Volume
1
Issue
5
fYear
2007
fDate
10/1/2007 12:00:00 AM
Firstpage
1078
Lastpage
1085
Abstract
The effective signal-to-noise and distortion ratio (SNDR) at the output of a nonlinear amplifier is defined through the decomposition of the nonlinear output into correlated output and uncorrelated distortion. The analysis is based on the orthogonalisation of the nonlinear behavioual model that allows the accurate estimation of the effective in-band (or co-channel) distortion and hence determination of SNDR. Fundamental issues regarding the evaluation of the effective in-band distortion and its effect on digitally modulated signals are discussed. Simulations of in-band distortion and SNDR of WCDMA signals are verified experimentally using feed-forward cancelation.
Keywords
channel estimation; cochannel interference; code division multiple access; nonlinear distortion; SNDR; co-channel nonlinear distortion; correlated output; nonlinear amplifier; uncorrelated distortion; wireless systems;
fLanguage
English
Journal_Title
Microwaves, Antennas & Propagation, IET
Publisher
iet
ISSN
1751-8725
Type
jour
DOI
10.1049/iet-map:20070034
Filename
4368231
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