ABSTRACT

Imagine hundreds of sensor nodes being airdropped on a mineeld. ese sensor nodes form an ad hoc wireless network, map out the location of the buried mines, and return the location information to a low-ying aircra. Nodes may be damaged or swept away in wind and rain. In fact, the loss or failure of such devices is an expected event-yet the sheer number of these devices is oen enough to overcome the impact of failures. As another

example in disaster management, randomly deployed sensor nodes in a disaster zone can help identify hot spots and guide rescuers toward it as quickly as possible. A agship problem is to rescue people from one of the upper oors of a tall building where a re breaks out, and two of the four stairwells are unusable due to carbon monoxide formation. ese outline the kind of applications charted for sensor networks.