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How to measure and maintain connectivity is an important issue in ad hoc networks. A special case of such network is Wireless Sensor Networks (WSN), which are often deployed in harsh environments and also susceptible to a number of problems that may negatively affect the connectivity among the nodes. An additional factor that increases the cost of connectivity maintenance in ad hoc networks is when...
Energy consumption and network connectivity are two of the important research issues that are yet to be resolved in mobile ad hoc networks (MANETs). As taken advantage of in static networks, reliable topology control algorithms are also considered to be a good approach for mobile networks. However, a more adequate evaluation of these algorithms regarding mobility is still needed. In this paper, we...
This paper presents a Multi-Link Topology (MLT) control algorithm for Network Centric Warfare (NCW) system based on information security. This method explains the complexity of communication links for NCW well. To accurately study the communication performance in HLA/RTI framework by the network simulators for real-time NCW simulation, it is important to simplify the network links topology through...
This paper presents a new protocol for the formation and maintenance of a backbone from the nodes of an ad hoc network where all the nodes are mobile. The new protocol is defined and its performance evaluated with respect to metrics such as its size, that favors scalability, its connectivity in time, which allows protocols to run efficiently, robustness and route length. Via ns2-based simulation experiments...
Mobile free space optical (FSO) links suffer from frequent link blockages due to opaque obstructions or link degradations that can result in degraded or failed networks. In this paper, a dynamic layer-1 based topology and routing control methodology is presented for assuring connectivity in networks with fragile links. Core components of this methodology are described with special emphasis on the...
In autonomous ad hoc networks, nodes may act in their self-interest to improve their performance, perhaps at the expense of other nodes', or even the overall network's, performance. Besides, nodes are often mobile and must contend with limited and obsolete information about the operating state of network during their decision-making. We examine topology control of ad hoc networks and analyze the impact...
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