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http://dx.doi.org/10.9723/jksiis.2014.19.4.025

A spectral efficient transmission method for ofdm-based power line communications  

Kim, Byung Wook (경일대학교 전기철도공학부)
Publication Information
Journal of Korea Society of Industrial Information Systems / v.19, no.4, 2014 , pp. 25-32 More about this Journal
Abstract
Powerline communications (PLC) is a promising medium for network access technology where smart grid aided network services can be provided. In the presence of frequency selective fading in the PLC channel, orthogonal frequency division multiplexing (OFDM) is a technique for reliable communications. This paper presents a spectral efficient method using a superimposed hidden pilot for OFDM-based PLC systems. Based on the scheme using a hidden pilot, it is possible to estimate the channel with no consumption of bandwidth, but with utilization of power allocated to the hidden pilot. Computer simulations showed that the proposed scheme provides higher achievable data rate than that of the conventional schemes in low voltage and medium voltage transmission lines.
Keywords
Power Line Communication; Precoding; Hidden Pilot; Spectral Efficiency;
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Times Cited By KSCI : 3  (Citation Analysis)
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