Modeling of low voltage power network channel

There is continued and growing interest in using low voltage power networks to realize "the last mile". We know that it is necessary and important for any communication system to study the channel model. The subject of this paper is the development of time-varying impulse response for a low voltage power network channel. Based on the theory of linear system, the authors analyze the propagation mode of electromagnetic waves in the power network and use the characteristics of signal multi-path propagation to deduce the time-varying impulse response of the low voltage power network channel. The impulse response is then discretized with the limitation resolution of the physical system. Finally, an example of physical system impulse response is given.