Power Line Communication Input Impedance Adjustment via Network Load Measurements

Power Line Communication (PLC) allows data to be multiplexed with the power line sinusoidal waveform. We consider a lumped circuit model network representing a distribution line and typical PLC hardware on either side of the network. The distribution line is assumed to have an auxiliary load which varies but can be measured. For the modulated and multiplexed data signal to be received requires sufficient power transfer through the network. We propose a methodology to adjust the receiving end input impedance to optimize the data transfer using a power transfer metric.