Statistics of impulse noise in xDSL

Iain Mann, Steve McLaughlin

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A limiting factor in the design of any Digital Subscriber Loop system will be the amount of impulse noise on subscriber lines. In this paper a new method for detecting impulse noise events using a statistical measure is presented. This is described in comparison with an existing technique which uses a hard amplitude-time threshold to locate the impulses. Both techniques are then used to calculate impulse duration and amplitude PDFs from real subscriber line data, recorded in the UK. Next these PDFs are compared to an analytical model proposed by Deutsche Telekom (DT). It is found that the form of the model is correct, but that the parameters chosen by DT are not appropriate for the line data used in this study, which was obtained from the network of British Telecom. Finally, more suitable parameter values are suggested in order to arrive at a working model of impulse length and amplitudes.

Original languageEnglish
Title of host publicationMathematics in Signal Processing V
EditorsJ G McWhirter, I K Proudler
Place of PublicationOxford
PublisherClarendon Press
Number of pages11
ISBN (Print)0-19-850734-8, 9780198507345
Publication statusPublished - 2002
Event5th Conference on Mathematics in Signal Processing - Coventry
Duration: 18 Dec 200020 Dec 2000

Publication series

NameInstitute of Mathematics and its Applications Conference Series
ISSN (Print)0960-2526


Conference5th Conference on Mathematics in Signal Processing


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