DocumentCode :
1535867
Title :
Bit-error rate of M-QAM signal and its analysis model for composite distortions in AM/QAM hybrid transmission
Author :
Maeda, Kazuki ; Utsumi, Kuniaki
Author_Institution :
Multimedia Dev. Center, Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
Volume :
47
Issue :
8
fYear :
1999
fDate :
8/1/1999 12:00:00 AM
Firstpage :
1173
Lastpage :
1180
Abstract :
In cable television (CATV) systems that deliver digital video services by employing a hybrid fiber and coaxial network, it is important to consider digital channel deterioration due to composite distortions, as well as the amplitude-modulation vestigial-sideband channel. Furthermore, it is essential to clearly estimate a digital channel´s quality in designing CATV transmission systems. However, there have been few studies on statistical models and an analysis method to estimate the bit-error rate (BER) of M-ary quadrature amplitude-modulation signals for composite distortions. This paper shows statistical properties of composite distortions and a new BER analysis method to handle them. In the evaluations, the amplitude distributions of composite distortions are given by Weibull distributions with skewness levels of 2.3 for composite second-order distortion and 1.5 for composite triple-beat distortion. We propose a new BER analysis method that uses the Weibull distributions for the composite distortion statistical features and demonstrate the effectiveness of the new BER analysis method in estimating BER by comparing its measurement results to calculation results
Keywords :
Weibull distribution; amplitude modulation; cable television; digital video broadcasting; electric distortion; error statistics; hybrid fibre coax networks; quadrature amplitude modulation; AM/QAM hybrid transmission; AMVSB channel; CATV systems; M-QAM signal; M-ary quadrature amplitude-modulation; Weibull distributions; amplitude distributions; amplitude-modulation vestigial-sideband channel; analysis model; bit-error rate; cable television systems; composite second-order distortion; composite triple-beat distortion; digital channel deterioration; digital video services; hybrid fiber/coaxial network; measurement results; skewness levels; statistical models; Bit error rate; Cable TV; Coaxial components; Frequency; Hybrid fiber coaxial cables; Nonlinear distortion; Optical fibers; Optical noise; Quadrature amplitude modulation; Signal analysis;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/26.780453
Filename :
780453
Link To Document :
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