Mitigating Disorderly Leaving Events in G.fast

Yezi Huang, Thomas Magesacher, Eduardo Medeiros, Chenguang Lu, Per-Erik Eriksson, Per Ödling

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1 Citering (SciVal)

Sammanfattning

Vectoring is a vital component of wideband wire- line communication systems. A disorderly leaving event (DLE) disturbs the vectoring operation since the precoder, which was designed for the channel before the change, is no longer up to date. Measurements indicate that the impact of a DLE can be serious for frequencies beyond 30 MHz, which corresponds to the band used by emerging wideband communication systems over short multi-pair copper cables such as G.fast. As an alternative to the state-of-the-art update procedure, this paper presents an approach to mitigating the DLE problem. By interpreting DLE with the FEXT-reflected-NEXT (FRN) model, we propose a scheme that enables the showtime lines to return to disturbance-free transmission once the loss of signal on a certain line is detected while updating the precoder as a background process. Furthermore, the estimation complexity for a K-user vectoring group is reduced from O(K^2) to O(K).
Originalspråkengelska
Titel på värdpublikation2015 IEEE International Conference on Communications (ICC)
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
Sidor939 - 944
Antal sidor6
DOI
StatusPublished - 2015
EvenemangIEEE International Conference on Communications, ICC 2015 - London, U.K., London, Storbritannien
Varaktighet: 2015 juni 82015 juni 12

Konferens

KonferensIEEE International Conference on Communications, ICC 2015
Land/TerritoriumStorbritannien
OrtLondon
Period2015/06/082015/06/12

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