the problem of routing in PLC networks
is revised taking into account that network nodes are static and
thus, their location is known a priori. In other words, the nodes
know in which direction a message is intended to flow. More
specifically, if a node receives a packet it can decide whether
to forward it or not. Such routing algorithms are known as geographic
routing in the wireless communications literature [33],
where they have been applied mainly in the context of wireless
sensor networks. These algorithms present high performance for
the application at hand: they close the gap between flooding on
the one hand and improved shortest path routing on the other.