NDLI: Study of Broadband Performance over residential power lines employing VDSL2

Content Provider	IEEE Xplore Digital Library
Author	Usha Rani, K.R. Ravishankar, S.
Copyright Year	2011
Description	Author affiliation: Department of Electronics and Communications Engineering, R.V.College of Engineering, Bangalore, India. (Usha Rani, K.R.; Ravishankar, S.)
Abstract	Broadband over power lines has received attention with a view to distribute it inside a residence. Power lines are different in topology and load impedances compared to universal twisted pair copper used in telephony. We examine the rates achieved over a typical home power line by reusing the Transmit Power spectral density (PSD) as in VDSL2. The power line has a thicker gauge and shorter straight lengths, apart from a large number of bridge taps (BT) with inductive load terminations. ABCD parameters of the individual sections are used to analyze the power line channel of upto 10 bridge taps over a 600 meter length. Tone loading profiles have been obtained using Discrete Multitone Transmission (DMT) as in VDSL2 over a bandwidth of 30 MHz. The noise profiles considered include impulse noise which is predominant over power line sections, apart from AWGN. This analysis points to the fact that lower Transmit PSD would suffice to match the rates achievable by traditional VDSL2 when bridge taps are open. However with inductive loads in the BTs as is typical in residences, we recommend a two step approach of equipping existing VDSL2 modem front end hybrids with settable impedances that would approach a conjugate match of the loaded line along with a capability to nominally increase the Transmit PSD to achieve the desired rates in a seamless manner as in VDSL2.
Starting Page	53
Ending Page	58
File Size	1845656
Page Count	6
File Format	PDF
ISBN	9781457709777
e-ISBN	9781457709784
DOI	10.1109/MICC.2011.6150299
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-02
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power Transmission Lines Broadband communication Power system communication Data Communication Power line communication Signal to noise ratio
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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