Exploiting the Common-Mode Signal in xDSL

Thomas Magesacher, Per Ödling, Per Ola Börjesson, Tomas Nordström

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review

4 Citeringar (SciVal)

Sammanfattning

Communication over the copper twisted-pair channel is performed by transmitting and receiving differential-mode (DM) signals. In this paper, we extend the conventional DM receive scheme by incorporating the common-mode (CM) signal, which can be extracted at the end of every wire pair. We assess the potential of this idea for digital subscriber line systems (xDSL) in terms of channel capacity using channel measurement data.
We show that especially those scenarios that suffer strong interference benefit most from joint DM-CM processing, since the interference at the DM port is strongly correlated with the interference at the CM port in these cases. Numerical evaluation of VDSL example scenarios shows that the capacity of the twisted-pair channel when using also the CM signal can exceed the capacity of the conventional DM channel by a factor of up to three.
Originalspråkengelska
Titel på värdpublikation12th European Signal Processing Conference, EUSIPCO 2004
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
Sidor1217-1220
ISBN (tryckt)978-320000165-7
StatusPublished - 2004
Evenemang12th European Signal Processing Conference EUSIPCO, 2004 - Vienna, Vienna, Österrike
Varaktighet: 2004 sep. 62004 sep. 10

Konferens

Konferens12th European Signal Processing Conference EUSIPCO, 2004
Land/TerritoriumÖsterrike
OrtVienna
Period2004/09/062004/09/10

Ämnesklassifikation (UKÄ)

  • Elektroteknik och elektronik

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