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The Effects of Multipath on OFDM Systems for Broadband Power-Line Communications a Case of Medium Voltage Channel
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
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2009 (English)In: World Academy of Science, Engineering and Technology, ISSN 2070-3724, Vol. 54, 205-208 p.Article in journal (Refereed) Published
Abstract [en]

Power-line networks are widely used today for broadband data transmission. However, due to multipaths within the broadband power line communication (BPLC) systems owing to stochastic changes in the network load impedances, branches, etc., network or channel capacity performances are affected. This paper attempts to investigate the performance of typical medium voltage channels that uses Orthogonal Frequency Division Multiplexing (OFDM) techniques with Quadrature Amplitude Modulation (QAM) sub carriers. It has been observed that when the load impedances are different from line characteristic impedance channel performance decreases. Also as the number of branches in the link between the transmitter and receiver increases a loss of 4dB/branch is found in the signal to noise ratio (SNR). The information presented in the paper

Place, publisher, year, edition, pages
2009. Vol. 54, 205-208 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-122180OAI: oai:DiVA.org:uu-122180DiVA: diva2:309250
Available from: 2010-04-07 Created: 2010-04-07 Last updated: 2016-04-14Bibliographically approved

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http://www.waset.org/journals/waset/v54/v54-65.pdf

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Anatory, JustinianTheethayi, NelsonThottappillil, Rajeev

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