Networking

Greedy Routing Recovery Using Controlled Mobility in Wireless Sensor Networks

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Executive Summary

One of the most current routing families in wireless sensor networks is geographic routing. Using nodes location, they generally apply a greedy routing that makes a sensor forward data to route to one of its neighbors in the forwarding direction of the destination. If this greedy step fails, the routing protocol triggers a recovery mechanism. Such recovery mechanisms are mainly based on graph planarization and face traversal or on a tree construction. Nevertheless real-world network planarization is very difficult due to the dynamic nature of wireless links and trees are not so robust in such dynamic environments. Recovery steps generally provoke huge energy overhead with possibly long inefficient paths.

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