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Clustering is used commonly in ad hoc networks for hierarchical routing. Size-bounded clustering has been proposed to restrict the maximum size of a cluster so that the routing load, and hence the energy drain, on the clusterhead is bounded. However, all the existing size-bounded clustering algorithms take the size bound as the number of nodes in the cluster. This approach may still result in high...
We present an efficient anomaly detection algorithm, named BANBAD. Using belief networks (BNs), the algorithm identifies abnormal behavior, like inappropriate energy consumption, in mobile ad-hoc networks (MANETs). By applying structure learning techniques to training dataset, BANBAD extracts the dependencies among relevant features, such as average velocity, displacement, local computation and communication...
In any vehicular adhoc network, there is always a possibility of incorrect messages being transmitted either due to faulty sensors and/or intentional malicious activities. Detecting and evicting sources of such misbehavior is an important problem. We observe that the performance of misbehavior detection schemes will depend on the application under consideration and the mobility dynamics of the detecting...
In this paper we propose a new energy aware routing protocol for mobile ad-hoc networks. Nodes in a mobile ad-hoc network operate on batteries, and hence designing energy aware protocols to maximize the battery lifetime is important. Traditional routing protocols fail to address the energy issues present in these networks. Several energy aware routing protocols have been designed in the recent years...
Class 2 opportunistic networks (oppnets) are a new paradigm for collaborative computing that aims at integrating communication, computation, sensing, actuation, storage, and other resources and services. Oppnets achieve global tasks and goals through the collaboration and coordination of their nodes (some of which join an oppnet dynamically). We describe the concept of oppnets, discuss related work,...
We present a novel paradigm of opportunistic networks or oppnets in the context of emergency preparedness and response (EPR). Oppnets constitute the category of ad hoc networks where diverse systems, not employed originally as nodes of an oppnet, join it dynamically in order to perform certain tasks they have been called to participate in. After describing the oppnets and their operation, we discuss...
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