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We consider the problem of appropriate clusterhead selection in wireless ad-hoc networks where it is necessary to provide robustness in the face of topological changes caused by node motion, node failure and node insertion/removal. The main contribution of our work is a new strategy for clustering a wireless AD HOC network and improvements in WCA. We first derived a simple stability model and thereafter...
Several large-scale distributed applications exploiting multicast communication require reliable delivery of data to all participants. In addition, scalability, throughput stability, efficient loss recovery and buffer management are essential communication properties in large-scale settings. In this paper, we first analyze, the instability factors and their results in the multicast infrastructure,...
In the context of mobile multi-hop ad hoc networks (MANETs), the routing is still a serious problem. In this work, we utilize the network cartography in different ways in order to improve the efficiency of the routing function. Firstly, we conceive a novel cartography gathering scheme that improves the responsiveness of the routing function towards the ceaselessly evolving topology of the MANET. Secondly,...
We propose an efficient dynamic architecture of the Public Key infrastructure (PKI) for vehicular ad hoc networks (VANETs) based on a trust model and a novel distributed clustering algorithm. Furthermore, we introduce the notion of a VANET Dynamic Demilitarized Zone (VDDZ), composed of the set of confident vehicles located within the immediate neighborhood of each clusterhead (CH) to assume the Registration...
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