03 octobre 2007

VDSL 2 : Ikanos nous parle "Bruits , Cuivre et VDSL2"

Lu sur Embedded.com :
"Minimizing impacts of noise for "Always On" services over VDSL2 Networks" by Manouchehr Rafie, Ikanos Communications.

Morceaux choisis :

"Rate/reach performance for multimedia services can be severely impacted by noise on VDSL2 lines that is a result of crosstalk coupling from electrical signals on adjacent pairs of copper wires or other impairments. Loop noise characteristics can change significantly as a result of on/off switching of DSL lines."


Ou encore :

* Common causes of performance degradation on DSL lines such as crosstalk, non-stationary radio interference disturbers, impulse noise and temperature changes;
* Techniques to minimize the impacts of noise to ensure that enhanced services are "always on"


On en revient toujours à la même source "Le cuivre est une éponge !"

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