Modeling Alien-Line Impedance Mismatch in Wideband Vectored Wireline Systems

Summary, in English

Sudden changes of channel coefficients in a wideband vectored wireline system (such as G.fast) due to changes in the terminating impedance of lines outside the vectored group can seriously degrade stability and throughput. This letter presents a model that predicts the impact of termination mismatch based exclusively on crosstalk data for the properly-terminated state. Experimental results confirm a tight fit between model and mea- surements. The model allows analysis of system performance and stability without dedicated crosstalk measurements for mismatch cases.

• Författare: Eduardo Medeiros; Thomas Magesacher; Per Ödling; Dong Wei; Xiang Wang; Qiaojie Li; Per-Erik Eriksson; Chenguang Lu; Jeroen Boschma; Bas van den Heuvel
• Avdelning/ar: Institutionen för elektro- och informationsteknik
• Publiceringsår: 2014
• Språk: Engelska
• Sidor: 1527-1530
• Publikation/Tidskrift/Serie: IEEE Communications Letters
• Volym: 18
• Issue: 9
• Länkar: http://dx.doi.org/10.1109/LCOMM.2014.2341551
• Dokumenttyp: Artikel i tidskrift
• Förlag: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Ämne: Electrical Engineering, Electronic Engineering, Information Engineering
• Nyckelord: Impedance matching; vectored transmission; DSL
• Status: Published
• Forskningsgrupp: Broadband Communication
• ISBN/ISSN/Övrigt: ISSN: 1089-7798