Abstract
An indoor power line is one of the most attractive media for in-home networks. However, there are many technical problems for achieving in-home power line communication (PLC) with high rate and high reliability. One of such problem is the degradation in the performance of the in-home PLC caused by periodically time-varying channel responses, particularly when connecting the switching power supply equipment. We present a measurement method for power line channel responses and reveal the switching of the channel responses synchronized with power-frequency voltage when connecting switching power supply equipment in sending or receiving outlets. In this paper, we term them periodically switching channel responses. The performance of PLC adapters is seriously affected by the periodically switching channel responses. Therefore, we provide a modeling of the periodically switching channel responses by using finite impulse response (FIR) filters with a shared channel memory and construct a simulator for in-home power line channels including the periodically switching channel responses in order to evaluate the various communication systems through the power line. We present the validity of the proposed simulator through the performance evaluation of OFDM/64QAM over periodically switching channels with additive white Gaussian noise. Furthermore, we evaluate the influence of the periodically switching channel responses on the communication quality of a time-invariant modulation scheme by using the proposed simulator.
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© 2009 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering
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Hayasaki, T., Umehara, D., Denno, S., Morikura, M. (2009). A Simulator of Periodically Switching Channels for Power Line Communications. In: Wang, C. (eds) AccessNets. AccessNets 2008. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 6. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04648-3_12
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DOI: https://doi.org/10.1007/978-3-642-04648-3_12
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-04647-6
Online ISBN: 978-3-642-04648-3
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