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In Part I of this work, we introduced multiconductortransmission-line (MTL) theory to model the indoor power-line (PL) channel. We have also shown that the proposed MTL approach can also be used to take into consideration both the topology of the link and particular wiring practices such as bonding. In this contribution, we continue our bottom-up approach to indoor PL channel modeling and we show that the circuit model found in Part I can be represented in terms of cascaded two-port networks (2PNs) coupled through a single modal transformer. Once the equivalent 2PN representation is obtained, it is possible to represent the whole PL link by means of transmission (ABCD) matrices only. The results presented here allow us to reveal that the PL channel is a more deterministic media than commonly believed and also allows us to unveil interesting properties of the PL channel, such as symmetry, that were previously unknown.

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