Software Rejuvenation and Reconfiguration for Enhancing Survivability of Sensor Networks

It is important to provide survivability of sensor networks in face of attacks in the network. In this paper, we focus on survivability modeling and enhancing of sensor networks through software rejuvenation and reconfiguration of sensor nodes in a cluster in the network. A specific action in software rejuvenation and reconfiguration is enforced to sensor node and it is possible to enhance survivability of sensor networks. We present a conceptual two level survivability model. The lower level presents how to define the state of each cluster in the network through a threshold function. The upper level presents probabilistic survivability of each cluster. We analyze proposed survivability model using proof of concept scenario examples and steady state analysis.