Vectored VDSL2: Theoretical possibilities on quad cables

Author

Mikac, Vedran ; Ilic, Zeljko ; Jurin, Goran ; Svedek, Velimir

Author_Institution

Ericsson Nikola Tesla, Zagreb, Croatia

fYear

2015

fDate

13-15 July 2015

Firstpage

1

Lastpage

5

Abstract

Mitigating unwanted effects of crosstalk in highspeed communications over copper-based digital subscriber lines (DSL) is well researched area. On the other hand effects of vectored transmission in access network based on quad cables instead of twisted pair cables is poorly covered. In such an environment, crosstalk models often do not behave intuitively and the results obtained using the standard crosstalk models can give surprising results. In this paper we calculate potentially achievable data rates, in downstream direction for VDSL2 (Very-high-bit-rate DSL 2) systems, with respect to loop length and cable filling percentage, taking into account vectoring applied on quad cables. Presented results are supported by laboratory measurements of attenuation and far-end crosstalk (FEXT). Finally, results provide useful bounds for developers, xDSL providers, and relevant regulatory agencies.

Keywords

digital subscriber lines; interference suppression; optical cables; optical crosstalk; FEXT; VDSL2; access network; cable filling; copper-based DSL; digital subscriber lines; far-end crosstalk; highspeed communication; loop length; quad cable; standard crosstalk model; unwanted crosstalk effect mitigation; vectored transmission; very-high-bit-rate DSL 2; xDSL provider; Cable shielding; Communication cables; Crosstalk; DSL; Mathematical model; Noise; Transfer functions; VDSL2; attenuation; crosstalk; data rate; measurements; vectoring;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications (ConTEL), 2015 13th International Conference on

Conference_Location

Graz

Type

conf

DOI

10.1109/ConTEL.2015.7231220

Filename

7231220