NDLI: Amplitude density of infrequent clipping impulse noise and bit-error rate impairment in AM-VSB/M-QAM hybrid lightwave systems

Content Provider	IEEE Xplore Digital Library
Author	Qi Pan Green, R.J.
Copyright Year	1972
Abstract	Analogue video cavalcade services in cable access television (CATV) networks usually require a very high carrier-to-noise ratio (CNR) in order to provide a good quality picture. In consequence, practical lightwave hybrid amplitude modulation (AM) M-ary quadrature amplitude modulation (M-QAM) systems are found to suffer only infrequent clipping impulse noise, which can be provably modeled as a Poisson arriving pulse train. Based on this knowledge, a new expression for the probability density function (PDF) of the clipping noise at the output of a QAM demodulation matched filter is given which can be numerically evaluated with high accuracy. The bit-error rate (BER) performance prediction is then carried out for M-QAM signals within the hybrid system in the presence of an additive mixture of Gaussian and clipping impulse noise. The agreement between the analytical results and the experimental data is quite good.
Starting Page	1329
Ending Page	1334
Page Count	6
File Size	673180
File Format	PDF
ISSN	00906778
Volume Number	44
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Noise level Quadrature amplitude modulation Bit error rate Additive noise Cable TV Amplitude modulation Pulse modulation Probability density function Demodulation Matched filters
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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