Increasing the transmission capacity of digital subscriber lines with phantom circuit and crosstalk cancelation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F15%3A00230396" target="_blank" >RIV/68407700:21230/15:00230396 - isvavai.cz</a>

Result on the web

<a href="http://link.springer.com/article/10.1007/s11235-014-9903-6" target="_blank" >http://link.springer.com/article/10.1007/s11235-014-9903-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11235-014-9903-6" target="_blank" >10.1007/s11235-014-9903-6</a>

Result language

angličtina

Original language name

Increasing the transmission capacity of digital subscriber lines with phantom circuit and crosstalk cancelation

Original language description

The technique of realizing phantom circuits in multi-pair and multi-quad metallic cables enables creating additional transmission circuits over standard pairs and quads in metallic cables. Theoretically, these phantom circuits can be subsequently used for additional digital subscriber lines and thanks to that the overall transmission capacity of metallic cables can be possibly increased. However, the transmission rates of present digital subscriber lines are limited mainly by physical parameters of used cables, such as attenuation and impedance, and also by the disturbances caused mainly by a crosstalk. One of the most promising solutions for full cancelation of far-end crosstalk is vector discrete multi-tone modulation (VDMT). First, this article contains brief introduction about the current situation in access networks, digital subscriber lines and metallic cables. Next, the practical experiment with metallic cable and necessary equipment was performed, the phantom circuit was created over one star-quad of a cable and its parameters and characteristics were measured and they are presented in the next section of this article. Based on these results, the next part is focused on the simulation of a modern digital subscriber line (VDSL2) using phantom circuit together with and without crosstalk elimination technique using VDMT modulation. The results and calculations of possible transmission capacity of phantom circuit are compared with measured results for two most frequently used VDSL2 profiles.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

<a href="/en/project/TA02011015" target="_blank" >TA02011015: Research and development of a new communication system with multi-channel approach and multi-layer co-operation for industrial applications</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Telecommunication Systems

ISSN

1018-4864

e-ISSN

—

Volume of the periodical

59

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

429-436

UT code for WoS article

000356933400003

EID of the result in the Scopus database

2-s2.0-84933278309