Subscriber loop topology classification by means of time-domain reflectometry

Tim Vermeiren, Tom Bostoen, Patrick Boets, Xavier Ochoa Chehab, Frank Louage

Research output: Contribution to journalConference articlepeer-review


Qualifying a subscriber loop for xDSL transmission can be done in many ways. Amongst all ways, methods that don't require an expensive truck-roll to the customer are preferred. In this paper we provide a method for an intelligent automated interpretation of reflectometric 1-port measurements at the central office. First we will focus on how reflectograms can be characterised. Next we will build up intelligence in the system to deal with the uncertainty on the characteristics and to infer the topology by means of a belief network. Eventually we will combine in an artificial intelligent way, by means of a rule-based expert system all available knowledge and derive the basic loop properties i.e. the topology and the delays of the individual line sections.

Original languageEnglish (US)
Pages (from-to)1998-2002
Number of pages5
JournalIEEE International Conference on Communications
StatePublished - 2003
Event2003 International Conference on Communications (ICC 2003) - Anchorage, AK, United States
Duration: May 11 2003May 15 2003

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


Dive into the research topics of 'Subscriber loop topology classification by means of time-domain reflectometry'. Together they form a unique fingerprint.

Cite this