A Simplified Deterministic Approach for Accurate Modeling of the Indoor Power Line Channel

This paper presents a novel approach to model the transfer function of electrical power lines for broadband power line communication (PLC). In this approach, the power line is approximated as a two wire transmission. The characteristic impedance and the constant propagation are derived from a circuit lumped-element model. Using these parameters, the transfer function for N-branches and M-nodes distribution network are derived based on the chain matrix method. Different investigations with regard to network load impedances, branched line length and number of branches has been evaluated. It is demonstrated that the method accurately determines the line characteristics under different network configurations and when different household appliances are connected.