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Channel Characterization for Indoor Power-Line Networks
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0002-1607-2493
2009 (English)In: IEEE Transactions on Power Delivery, ISSN 0885-8977, E-ISSN 1937-4208, Vol. 24, no 4, 1883-1888 p.Article in journal (Refereed) Published
Abstract [en]

Power-line networks are promising mediums by which broadband services can be offered, such as Internet services, voice over Internet protocol, digital entertainment, etc. In this paper, an analysis of delay spread, coherence bandwidth, channel capacity, and averaged delay in the frequency bands up to 100 MHz for typical indoor power-line networks are studied. Earlier studies for indoor power-line networks considered frequencies up to 30 MHz only and earlier works have shown that at these frequency bands, the data rates are generally low and are inefficient for digital entertainment in comparison with wireless local-area networks standards, such as IEEE 802.11n. In this paper, it is shown that at 100 MHz, the average channel capacity for typical indoor power-line networks can be up to 2 Gb/s and it is found that by increasing the number of branches in the link between transmitting and receiving ends, the average channel capacity decreases from 2 Gb/s to 1 Gb/s (when the number of branches was increased by four times for a power spectral density of 60 dBm/Hz). At the same time, the coherence bandwidth decreased from 209.45 kHz to 137.41 kHz, which is much better than the coherence bandwidths corresponding to 30-MHz systems. It is therefore recommended to operate the indoor power-line networks at 100-MHz bandwidths for a wide variety of broadband services.

Place, publisher, year, edition, pages
2009. Vol. 24, no 4, 1883-1888 p.
Keyword [en]
Branched network, communication channel model, multipath, power-line communication, transfer function
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-32282DOI: 10.1109/TPWRD.2009.2021044ISI: 000270139900017Scopus ID: 2-s2.0-70350270031OAI: oai:DiVA.org:kth-32282DiVA: diva2:409984
Note
QC 20110412Available from: 2011-04-12 Created: 2011-04-11 Last updated: 2017-12-11Bibliographically approved

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Thottappillil, Rajeev

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