Modeling of Power Line Transfer of Data for Computer Simulation

The paper deals with problems of data communication over power lines. This technology is referred to as PLC (Power Line Communication). A wider deployment of this technology in practice is currently hampered by a number of drawbacks. They are, in particular, interference with useful signal on lines, interference radiation, limited range of useful signal, and power grid elements that affect the transfer. It results from an analysis of partial problems that it is of advantage to have available a computer model of power line, which would enable simulating appropriately the data transfer over power lines. Two different, in a way conflicting, requirements need to be reconciled. Primarily, power lines are not designed for data transfer while data lines, in turn, are not adapted for power transmission. Although the two types of line are represented by the same parameters, their operation is completely different. A number of papers have been devoted to potential models of power lines for data communication. The present paper is an attempt to cope with these problems.