We propose a novel reactive routing algorithm called PARTROUTE which achieves
energy efficient routing in sensor networks with stationary and mobile nodes.
PARTROUTE uses coarse mobility awareness in each node to reduce the overheads of
reactive routing by intelligently re-using parts of the created on-demand routes beyond
their standard lifetime. We show that the responsiveness of the network improves while
the overall network traffic is reduced. The effectiveness of PARTROUTE with a large
percentage of mobile nodes is also shown.