In wireless ad hoc networks heterogeneity is inherent; each node has different characteristics, resources and purpose. Current ad hoc routing protocols do not take node heterogeneity into account when making routing decisions; they consider each node identical in capabilities. This paper proposes a simple way to modify the route discovery phase of an on-demand routing protocol to select the "Best" route, considering heterogeneity. The Ad hoc On-Demand Distance Vector (AODV) routing protocol is modified and the performance validated in both a testbed and simulation. It is shown that by considering heterogeneity during route discovery, paths that contain more capable nodes is utilized, thereby avoiding resource-poor nodes.
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