A Simulator of Periodically Switching Channels for Power Line Communications

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 si...

• Type: Conference
• Year: 2008
• Where: ACCESSNETS
• Authors: Taro Hayasaki, Daisuke Umehara, Satoshi Denno, Masahiro Morikura
• Keywords: Access Networks, ACCESSNETS 2008, Channel Response, Power Line, Switching Channel Response