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Crosstalk Models for Short VDSL2 Lines from Measured 30 MHz Data

  • E KaripidisEmail author
  • N Sidiropoulos
  • A Leshem
  • Li Youming
  • R Tarafi
  • M Ouzzif
Open Access
Research Article
Part of the following topical collections:
  1. Advanced Signal Processing for Digital Subscriber Lines

Abstract

In recent years, there has been a growing interest in hybrid fiber-copper access solutions, as in fiber to the basement (FTTB) and fiber to the curb/cabinet (FTTC). The twisted pair segment in these architectures is in the range of a few hundred meters, thus supporting transmission over tens of MHz. This paper provides crosstalk models derived from measured data for quad cable, lengths between 75 and 590 meters, and frequencies up to Open image in new window MHz. The results indicate that the log-normal statistical model (with a simple parametric law for the frequency-dependent mean) fits well up to Open image in new window MHz for both FEXT and NEXT. This extends earlier log-normal statistical modeling and validation results for NEXT over bandwidths in the order of a few MHz. The fitted crosstalk power spectra are useful for modem design and simulation. Insertion loss, phase, and impulse response duration characteristics of the direct channels are also provided.

Keywords

Information Technology Statistical Model Power Spectrum Impulse Response Quantum Information 

References

  1. 1.
    Spectrum Management for Loop Transmission Systems ANSI Standard T1.417-2003, Section A.3.2.1Google Scholar
  2. 2.
    Karipidis E, Sidiropoulos N, Leshem A, Youming L: Experimental evaluation of capacity statistics for short VDSL loops. IEEE Transactions on Communications 2005, 53(7):1119–1122. 10.1109/TCOMM.2005.851626CrossRefGoogle Scholar
  3. 3.
    Werner J-J: The HDSL environment [high bit rate digital subscriber line]. IEEE Journal on Selected Areas in Communications 1991, 9(6):785–800. 10.1109/49.93089CrossRefGoogle Scholar
  4. 4.
    Kerpez K: Models for the numbers of NEXT disturbers and NEXT loss. Contribution number T1E1.4/99-471, October 1999, available at https://doi.org/ftp.t1.org/pub/t1e1/e1.4/DIR99/9E144710.pdfGoogle Scholar
  5. 5.
    Leshem A: Multichannel noise models for DSL I: Near end crosstalk. Contribution T1E1.4/2001-227, September 2001, available at https://doi.org/ftp.t1.org/pub/t1e1/e1.4/DIR2001/200-299/1E142270.zipGoogle Scholar
  6. 6.
    Lin SH: Statistical behaviour of multipair crosstalk. Bell System Technical Journal 1980, 59(6):955–974.CrossRefGoogle Scholar
  7. 7.
    Norme Française # NF C 93-527-2, July 1991Google Scholar

Copyright information

© Karipidis et al. 2006

Authors and Affiliations

  • E Karipidis
    • 1
    Email author
  • N Sidiropoulos
    • 1
  • A Leshem
    • 2
  • Li Youming
    • 2
  • R Tarafi
    • 3
  • M Ouzzif
    • 3
  1. 1.Department of Electronic and Computer EngineeringTechnical University of CreteCreteGreece
  2. 2.Department of Electrical EngineeringBar-Ilan UniversityRamat-GanIsrael
  3. 3.France Telecom R&DLannionFrance

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