Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Node connectivity"”.
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Modeling, analysis, and control of interdependent networks
… of arbitrary topologies by layered graphs, where nodes in the demand layer depend on nodes in the supply layer. We study the supply node connectivity of the demand layer network: namely, the minimum number of supply node removals that would disconnect the demand network. We develop algorithms to …
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Understanding and modeling food flow networks across spatial scales
… producer and trade power. We find normal node degree distributions and Weibull node strength and betweenness centrality distributions. An unassortative network structure with high clustering coefficients exists. These network properties indicate that the USA food flow network is highly …
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DNS based routing protocol in ad hoc networks
… wireless ad hoc networks. In this protocol, each node knows the node connectivity within its reachable set; some nodes have DNS capability, which are responsible for route discovery. The routing is performed on two levels: Local node and terrestrial Global IP. By using DNS technique, the …
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The application of computational modeling to data visualization
… visualization types: 2D flow visualizations and node-link graph visualizations.</p><p>The computational perceptual model is applied to various visual representations of flow fields evaluated using the advection task of Laidlaw et al. The predictive power of the model is examined by comparing its …
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A modular real-time hardware-in-the-loop simulation environment for microgrids
… as a real-/reactive-power controller. Two nodes in the network were made to have adjustable real and reactive power. Real and reactive powers in the network, line impedances, and node connectivity were used to solve for bus voltages in a Gauss-Seidel Load Flow Solver (implemented in an …
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Energy efficient organization and modeling of wireless sensor networks
… networks is investigated and analyzed. First, a connectivity distribution model that characterizes the corresponding sensor connectivity distribution for a multi-hop sensor networking system is introduced. Based on this model, the impact of node connectivity on system reliability is analyzed, and …
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Green optical network design : power optimization of wide area and metropolitan area networks
… wavelengths of core, stable traffic between node pairs are routed via direct, fixed lightpaths using patch panelling and unexpected, bursty traffic is switched on a standard optical bypass network. We analyze power distribution among components and find the OXC switch most scalable at each …
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Design and Analysis of Adaptive Fault Tolerant QoS Control Algorithms for Query Processing in Wireless Sensor Networks
… to network dynamics that cause changes to the node density, residual energy, sensor failure probability, and radio range due to energy consumption, node failures, and change of node connectivity. Further, AFTQC can deal with software faults, concurrent query processing with distinct QoS …
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Survivable network design problems with element and vertex connectivity requirements
… this thesis, we consider degree-bounded element-connectivity Survivable Network Design Problem (Elem-SNDP) and degree-bounded Rooted k-outconnectivity Problem. We suggest bicriteria approximation algorithms that are motivated by Ene and Vakilian's work in [1] and Lau and Zhou's work in [2]. The …
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Distributed Monitoring System for Mobile Ad Hoc Networks: Design and Implementation
… (MANETs) are networks in which the participating nodes can move freely without having to worry about maintaining a direct connection to any particular fixed access point. In a MANET, nodes collaborate with each other to form the network and as long as a node is in contact with any other member of …
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Clustering, coverage and aggregation methods for large networks
… while capturing important and relevant interconnectivity information. In the first part of this thesis, we develop a theoretical framework for aggregating systems that are represented by directed weighted graphs. In this framework, we formulate an optimization problem, with the goal of …