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In this paper we investigate the network lifetime maximization problem in a delay-tolerant wireless sensor network with a mobile sink by exploiting a nontrivial tradeoff between the network lifetime and the data delivery delay. We formulate the problem as a joint optimization problem that consists of finding a trajectory for the mobile sink and designing an energy-efficient routing protocol to route...
We consider the problem of detecting clones in wireless mobile ad-hoc networks. We assume that one of the devices of the network has been cloned. Everything, including saved passwords, certificates and secret keys. We propose a solution in networks of mobile devices carried by individuals -- composedby nodes that can communicate by short-range technology like bluetooth or Wi-Fi, and links appear and...
In this paper, we propose an energy aware movement-assisted deployment algorithm to achieve complete coverage and load balance for wireless sensor networks. By dividing the target area into several coronas with the same width of sensor communication radius, the optimal deployment density is computed for each corona. To the whole network, the movement of sensors can be treated as two steps. For the...
The effectiveness of wireless sensor networks (WSN) depends on the coverage and connectivity provided by node deployment, which is one of the key topics in WSN. In this paper, a modified virtual force-based node self-deployment algorithm for nodes with mobility is proposed. In the virtual force-based approach, all nodes are seen as points subject to repulsive and attractive force exerted among them,...
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