Cable parameters identification for DSL systems

Borges, Gilvan; Rodrigues, Roberto M.; Sales, Claudomiro; Ericson, Klas; Costa, João Crisóstomo Weyl Albuquerque

doi:10.1109/eurocon.2011.5929302

Cited by 1 publication

(4 citation statements)

References 6 publications

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“…In [30], an interesting method for identification of parameters of twisted-pairs from input impedance measurements through a combination of analytical approach and optimization process is proposed . For each type of cable, the values of the physical and geometric parameters of the line model are adjusted in agreement with the cable configurations.…”

Section: Classification Of the Setâmentioning

confidence: 99%

“…Twelve line topologies were used and divided in three subsets: topologies with only one section (lines 1 to 6), lines made up of more than one serial sections (lines 7 to 10), and lines with one bridge tap (lines 11 and 12). The physical parameters of the cables A, B, and C were obtained using the method defined in [30]. These test lines are described in Table I.…”

Section: General Conditions Of Evaluationmentioning

confidence: 99%

“…The parameters can be obtained from a priori information or estimated from line measurements. In [30], an interesting method for identification of parameters of twisted-pairs from input impedance measurements through a combination of analytical approach and optimization process is proposed .…”

Section: Classification Of the Setâmentioning

confidence: 99%

“…These cable types are named here C and D, respectively. The physical parameters of the cables A, B, and C were obtained using the method defined in [30].…”

Section: General Conditions Of Evaluationmentioning

confidence: 99%

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A wavelet‐based expert system for digital subscriber line topology identification

Lima

Klautau

Costa

et al. 2014

Int J Communication

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This work proposes a new method for automatically identifying topologies of lines with one or more sections in a telephone network. The method is based on the examination of both impulse response and time-domain reflectometry trace of a line under test. They are analyzed using a method based on the wavelet transform that identifies and extracts features that contain information about the line topology. Those features are interpreted by an expert system composed of three sequential modules that estimate, respectively, the type of line makeup (serial or bridge tap), the lengths of the line sections, and the corresponding cable type, which are the parameters that completely identify the topology according to the assumed model. A thorough comparison with two state-of-the-art methods is also presented using several twisted-pair copper cables. The results show that the proposed method provides good accuracy with respect to topology identification at low computational cost.

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Section: Classification Of the Setâmentioning

confidence: 99%

Section: General Conditions Of Evaluationmentioning

confidence: 99%

Section: Classification Of the Setâmentioning

confidence: 99%

“…These cable types are named here C and D, respectively. The physical parameters of the cables A, B, and C were obtained using the method defined in [30].…”

Section: General Conditions Of Evaluationmentioning

confidence: 99%

See 2 more Smart Citations