1999
DOI: 10.1109/35.755453
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Very-high-speed digital subscriber lines

Abstract: VDSL services are overviewed with an emphasis on the basic architecture, applications, and data rates, as well as the technological challenges of design. Discussions of the telephone line environment, radio-band interference ingress and egress, impulse noise, and symmetric and asymmetric multiplexing are included, along with brief descriptions of two popular implementations.

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Cited by 53 publications
(29 citation statements)
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“…The VDSL signals occupy a 300 KHz-30 MHz band within the bandwidth of the twisted pair. The detailed architecture of a VDSL system is discussed in [7][8][9][10]. There are essentially two modulation schemes that can be used in VDSL systems, the carrierless AM/PM (CAP) or quadrature amplitude modulation (QAM), and the discrete multi-tone (DMT) modulation .…”
Section: Line Impairments and Impact Of Coding In Vdsl Systemsmentioning
confidence: 99%
See 4 more Smart Citations
“…The VDSL signals occupy a 300 KHz-30 MHz band within the bandwidth of the twisted pair. The detailed architecture of a VDSL system is discussed in [7][8][9][10]. There are essentially two modulation schemes that can be used in VDSL systems, the carrierless AM/PM (CAP) or quadrature amplitude modulation (QAM), and the discrete multi-tone (DMT) modulation .…”
Section: Line Impairments and Impact Of Coding In Vdsl Systemsmentioning
confidence: 99%
“…The advantages of using QAM for a VDSL include small power consumption, low complexity [20] and flexibility in bandwidth management. The dominant sources of line impairments in a VDSL environment include the far-end crosstalk (FEXT) from other VDSL services, the near-end crosstalk (NEXT) from the baseband services in the same wire bundle, the additive white Gaussian noise (AWGN), the radio frequency interference (RFI) between the VDSL transceivers and the traditional radio receivers and the impulse noise [1,6,7]. The effect of NEXT can be eliminated by employing the FDM approach, in which one directional transmission is adopted among all the telephone subscriber loops.…”
Section: Line Impairments and Impact Of Coding In Vdsl Systemsmentioning
confidence: 99%
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