Characterization of subscriber local loop by measures and analysis of frequency and impulse responses

João C. W. A. Costa; Jacklyn Reis; Igor Negrão; Agostinho Castro; Lamartine V. de Souza; Klas Ericson; Fredrik Lindqvist; Jaume Rius I Riu

doi:10.1117/12.686697

2 October 2006 Characterization of subscriber local loop by measures and analysis of frequency and impulse responses

João C. W. A. Costa, Jacklyn Reis, Igor Negrão, Agostinho Castro, Lamartine V. de Souza, Klas Ericson, Fredrik Lindqvist, Jaume Rius I Riu

Author Affiliations +

Proceedings Volume 6390, Broadband Access Communication Technologies; 63900N (2006) https://doi.org/10.1117/12.686697
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

Abstract

This paper presents methodologies that could be used for characterizing subscriber telephone loops that carry DSL services (ADSL and ADSL2+), by determination and analysis of frequency response, time domain reflectometry, and impulse response of the line. From this analysis, the subscriber loop length, identification and location of impairments such as bridged taps, gauge changes, and open ended termination across the line are carried out. To verify the methodologies presented, results obtained from measurements are drawn and compared to results obtained from computational simulations.

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João C. W. A. Costa, Jacklyn Reis, Igor Negrão, Agostinho Castro, Lamartine V. de Souza, Klas Ericson, Fredrik Lindqvist, and Jaume Rius I Riu "Characterization of subscriber local loop by measures and analysis of frequency and impulse responses", Proc. SPIE 6390, Broadband Access Communication Technologies, 63900N (2 October 2006); https://doi.org/10.1117/12.686697

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