Abstract: Apparatus, systems, and methods may operate to traverse intermediate nodes in a network during message routing operations to determine an original routing path for a source message by using proactive routing between clusters of nodes in the network, and both proactive and reactive routing within the clusters; to select the original routing path according to a greedy energy strategy that operates to define the original routing path as a path having a greater energy value associated with the intermediate nodes than other paths; and upon discovery of selfish nodes, to direct removal of the selfish nodes from route caches associated with traversed nodes, and to determine an alternate routing path for the source message in the network by searching upstream route caches in the traversed nodes in the network to discover the alternate path. Additional apparatus, systems, and methods are disclosed.

Abstract: Apparatus, systems, and methods may operate to traverse intermediate nodes in a network during message routing operations to determine an original routing path for a source message by using proactive routing between clusters of nodes in the network, and both proactive and reactive routing within the clusters; to select the original routing path according to a greedy energy strategy that operates to define the original routing path as a path having a greater energy value associated with the intermediate nodes than other paths; and upon discovery of selfish nodes, to direct removal of the selfish nodes from route caches associated with traversed nodes, and to determine an alternate routing path for the source message in the network by searching upstream route caches in the traversed nodes in the network to discover the alternate path. Additional apparatus, systems, and methods are disclosed.