Various embodiments implement a set of low overhead mechanisms to enable on-demand routing protocols. The on-demand protocols use route accumulation during discovery floods to discover when better paths have become available even if the paths that the protocols are currently using are not broken. In...http://www.google.se/patents/US20080107034?utm_source=gb-gplus-sharePatent US20080107034 - ROUTE OPTIMIZATION FOR ON-DEMAND ROUTING PROTOCOLS FOR MESH NETWORKS
