Transfer function and Impulse Response Simulation of Power Line Channel

Brajesh Singh, Kanchan Sharma

Abstract: Due to increasing complexity, space and cost of communication network, the Electric Power Network has been considered a great option for the solution of all problems. Power line communications (PLC) term stands for the technologies for the data communication over the electrical power supply network. Existing power system is not designed for having data transfer. In this paper we have developed a simulation model of power-line for low voltage distribution network in home. Impulse response of the channel is generated in order to characterize the behavior of power line channel for high speed data communication purpose. To represent Multi-branch network mathematically, ABCD matrix parameters are used. Load mismatching is experimented on three parameters multiple loading, multi-branch and different cable length and analysis is presented of its effect on impulse response. All the simulation work has been done using MATLAB.

Keywords: Power line communication, Channel modeling, Impulse response, High speed data