Vectoring, used in VDSL2 to counteract FEXT, becomes less effective, or even ineffective, when users belong to different vectoring groups. This situation is common when the Regulator imposes sub-loop unbundling and users of uncoordinated service providers cause alien-FEXT. The sub-band vectoring (SBV) technique introduced here, avoids this situation and retains the vectoring benefits. We show SBV allows achieving up to 150 Mbit/s per user in downstream at 200 m from cabinet for VDSL2 profile-35b, with two concurrent service providers. We also introduce the concept of data-rate coverage representing the users’ percentage served at a given data-rate in the area.
Giuliano, R., Mazzenga, F., Vatalaro, F. (2017). Data-Rate Performance and Coverage of the Sub-Band Vectoring for VDSL 35b Profile. FIBER AND INTEGRATED OPTICS, 36(3), 111-126 [10.1080/01468030.2017.1317372].
Data-Rate Performance and Coverage of the Sub-Band Vectoring for VDSL 35b Profile
Giuliano, Romeo;Mazzenga, Franco;Vatalaro, Francesco
2017-01-01
Abstract
Vectoring, used in VDSL2 to counteract FEXT, becomes less effective, or even ineffective, when users belong to different vectoring groups. This situation is common when the Regulator imposes sub-loop unbundling and users of uncoordinated service providers cause alien-FEXT. The sub-band vectoring (SBV) technique introduced here, avoids this situation and retains the vectoring benefits. We show SBV allows achieving up to 150 Mbit/s per user in downstream at 200 m from cabinet for VDSL2 profile-35b, with two concurrent service providers. We also introduce the concept of data-rate coverage representing the users’ percentage served at a given data-rate in the area.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
