AccessNets. Third International Conference on Access Networks, AccessNets 2008, Las Vegas, NV, USA, October 15-17, 2008. Revised Papers

Research Article

A Simulator of Periodically Switching Channels for Power Line Communications

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  • @INPROCEEDINGS{10.1007/978-3-642-04648-3_12,
        author={Taro Hayasaki and Daisuke Umehara and Satoshi Denno and Masahiro Morikura},
        title={A Simulator of Periodically Switching Channels for Power Line Communications},
        proceedings={AccessNets. Third International Conference on Access Networks, AccessNets 2008, Las Vegas, NV, USA, October 15-17, 2008. Revised Papers},
        proceedings_a={ACCESSNETS},
        year={2012},
        month={5},
        keywords={power line communication periodically switching channel response switching power supply OFDM simulator},
        doi={10.1007/978-3-642-04648-3_12}
    }
    
  • Taro Hayasaki
    Daisuke Umehara
    Satoshi Denno
    Masahiro Morikura
    Year: 2012
    A Simulator of Periodically Switching Channels for Power Line Communications
    ACCESSNETS
    Springer
    DOI: 10.1007/978-3-642-04648-3_12
Taro Hayasaki1,*, Daisuke Umehara1,*, Satoshi Denno1,*, Masahiro Morikura1,*
  • 1: Kyoto University
*Contact email: taro@imc.cce.i.kyoto-u.ac.jp, umehara@imc.cce.i.kyoto-u.ac.jp, denno@imc.cce.i.kyoto-u.ac.jp, morikura@imc.cce.i.kyoto-u.ac.jp

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.