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Recent advances in systems of networked sensors have set the stage for smart environments which will have wide-ranging applications from intelligent wildlife monitoring to social applications such as health and elderly care service provisioning. Perhaps the most natural problem in sensor systems is the ??efficient?? propagation of a sensed local event. In order to address this problem, the notion...
Geographic routing, an attractive routing solution for wireless ad hoc networks, has been studied extensively in two-dimensional environments. However, three-dimensional space has proven to be much more challenging, with only a few existing proposals. In this paper, we present Slab Routing - a novel projection based method that adapts two-dimensional geographic face routing techniques to three-dimensional...
Wireless mesh networks are mobile communication networks where the nodes may have fixed or mobile relative position among each other. The application range is large, they can be used either as a sensor network or connected to Internet through gateways. The communication is carried over low power and low range wireless channels, so its necessary a multi hop routing. The Better Directed Progression...
Routing in delay tolerant networks (DTNs) is a challenging problem in networking research. Existing DTN routing solutions have used many approaches to increase the success rate of message delivery, such as meeting probabilities between nodes, packet replication and flooding. One important feature of these protocols is using local connection information to find the ldquobestrdquo path with high likelihood...
Delay Tolerant Networks (DTNs), in which contacts between nodes come and go over time, is a promising approach to model communications in mobile ad-hoc networks, where scenarios of network partitioning and node disconnections are likely to happen. One of the most important challenges in such networks is how to route information and schedule transmissions, coping with the continuously changing network...
Distributed denial of service (DDoS) attacks have become a major threat to organizations and especially to Internet and intranet. In DDoS attacks targets are overwhelmed by sending an enormous amount of traffic from number of attack sites. The major tasks of any defense system are to detect these attacks accurately and early on, before it causes an unrecoverable loss. Most of the research in this...
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