What is Energy-aware Routing Protocols

Weiser (1991) envisioned ubiquitous computing with computing and communicating entities woven into the fabrics of every day life. This chapter deals with the survivability of ambient resource-constrained wireless computing nodes, from fixed sensor network nodes to small devices carried out by roaming entities, for example, as part of a personal area network of a moving person. First, we review the assets that need to be protected, especially the energy of these unplugged devices. There are also a number of specific attacks that are described, for example, direct physical attacks are facilitated by the disappearing security perimeter. Finally, we survey the protection mechanisms that have been proposed with an emphasis on cryptographic keying material and trust management.