NDLI: Influence of fading on the Gaussian approximation for BPSK and QPSK with asynchronous cochannel interference

Content Provider	IEEE Xplore Digital Library
Author	Giorgetti, A. Chiani, M.
Copyright Year	2002
Abstract	We investigate the performance of BPSK and QPSK with coherent detection and matched filtering in the presence of both time and phase asynchronous cochannel interfering signals. More precisely, we analyze the role played by different channel statistics on the distribution of the decision variable at the output of the matched filter. The results show that the Gaussian approximation is accurate not only in the (obvious) case of a large number of interferers, but also when the desired signal is subject to fading, whatever the number of interferers is. For example, when the desired signal is subject to Rayleigh fading, even in the presence of only one unfaded interferer the Kullback-Leibler distance between the exact distribution of the decision variable and that obtained with the Gaussian approximation on the interference is lower than 0.01 [nats] for all cases of practical interest.
Starting Page	384
Ending Page	389
Page Count	6
File Size	256332
File Format	PDF
ISSN	15361276
Volume Number	4
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Gaussian approximation Binary phase shift keying Quadrature phase shift keying Interchannel interference Matched filters Rayleigh channels Phase detection Filtering Statistical analysis Kullback–Leibler divergence (KLD) Cochannel interference digital communications fading channels
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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