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.
Results
Showing 1 to 20 of 33 for “"Physical Network"”.
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A study into scalable transport networks for IoT deployment
… remain a concern over the existing (traditional) networks. In this study, an evolutionary approach into implementing a "Scalable IoT Data Transmission Network" (S-IoT-N) is proposed while leveraging on existing transport networks. Most Importantly, the proposed evolutionary approach attempts to …
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Automated modeling of nonlinear dynamical subsystems for stable system simulation
… unstable simulation when interconnected within a physical network. This is because energy-related system properties are not properly enforced, and the generated models erroneously produce numerical energy, which in turn causes instability of the entire physical network. Therefore, when modeling a …
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Network layer support for overlay networks
Overlay networks are virtual networks formed by cooperating nodes that share an underlying physical network. They represent a flexible and deployable approach for applications to obtain new network semantics without modification of the underlying network, but they suffer from efficiency concerns. …
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Low-Overhead Packet Loss Diagnosis for Virtual Private Clouds using P4-Programmable NICs
… monitoring systems are either designed for the physical network or are not adequate to be able to detect the specific cause of packet losses in the physical network. Besides, there are few virtual network monitoring systems suitable for tenants that impose an insignificant overhead. This thesis …
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Survivability in layered networks
In layered networks, a single failure at the lower (physical) layer may cause multiple failures at the upper (logical) layer. As a result, traditional schemes that protect against single failures may not be effective in layered networks. This thesis studies the problem of maximizing network …
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Enhancing HPC on Virtual Systems in Clouds through Optimizing Virtual Overlay Networks
… in extremely high throughput and low latency networks, such overlays can suffer from bandwidth and latency limitations, which is of particular concern in HPC environments. Through a careful and quantitative analysis, I iden- tify three core issues limiting performance: delayed and excessive …
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Modeling and Analysis of Multilayer Complex Distribution System: A Multi-Agent Simulation for Decision Making
… several interacting layers fit in the context of physical (network), cyber, social and natural environment, cannot be captured by closed form mathematical models and new approaches derived from complex sciences, as Multi Agent Simulation (MAS), will be employed for developing proper tools. Based …
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Using design structure matrices to improve decentralization urban transportation systems
… and operation of distinct pieces of the physical network. In order to deliver better service to users, many urban regions are adopting technological and operational solutions, both of which necessitate interaction among the decentralized actors. This research applies a systems engineering …
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Robust distribution sensor network localization with noisy range measurements
… linear-time algorithm for localizing sensor network nodes in the presence of range measurement noise and demonstrates the algorithm on a physical network. We introduce the probabilistic notion of robust quadrilaterals as a way to avoid flip ambiguities that otherwise corrupt localization …
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Model-Centric Interdependent Critical Infrastructure System Recovery Analysis and Metrics
… the Unified Modeling Language (UML) and Physical Network Modeling; and applies them to naval ship reduced manned Hull, Mechanical, Electrical and Damage Control (HMEandDC) system design and operation management. OOAandD problem decomposition is used to derive a natural solution structure …
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Energy Efficient Resource Allocation for Virtual Network Services with Dynamic Workload in Cloud Data Centers
… proliferation of cloud computing, more and more network services and applications are deployed on cloud data centers. Their energy consumption and green house gas emissions have significantly increased. Some efforts have been made to control and lower energy consumption of data centers such as, …
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Statistical Methods for Cooperative and Distributed Inference in Wireless Networks
… inference problems in wireless communication networks. The term “distributed inference” denotes, in general, detection/estimation involving multiple network nodes (“sensors”) that collect physical measurements and communicate with each other. Such problems can be classified as homogeneous, …
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Development of Service Assurance Techniques for Intent Based Networking
… of Service Assurance Techniques for Intent Based Networking. The mismatch problem between a network service and monitoring of the network service is discussed and addressed. Objective is to reduce amount of telemetry data exported over Wide Area Network (WAN) by processing telemetry at the edge by …
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Adaptive Routing Using SDN and NFV
… multimedia applications. Due to ever-increasing network traffic, it is challenging for ISPs to accomplish optimal network conditions. To achieve high-quality services implementation of network monitoring and QoS routing algorithm is inevitable. Also, several modifications occur while network …
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Exploring Multiple Hydrogen Bonding and Ionic Bonding in the Design of Supramolecular Polymers
… supramolecular polymers combine excellent physical properties with low melt-viscosity, allowing for less energy-intensive processability and recyclability. Dynamic bonding with multiple binding sites, such as multiple hydrogen bonding or multiple ionic bonding, exhibits much stronger …
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Resource allocation and NFV placement in resource constrained MEC-enabled 5G-Networks
The fifth-generation (5G) of mobile communication networks are expected to support a large number of vertical industries requiring services with diverging requirements. To accommodate this, mobile networks are undergoing a significant transformation to enable a variety of services to coexist on the …
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Energy Optimization for Virtualized Network Environments
… Infrastructure Providers (InPs), Virtualized Network Environments (VNEs) have been regarded as a promising technology for flexibly utilizing shared communication network resources. VNEs also play a fundamental role toward virtualizing data centers. In this thesis, we suggest different feasible …
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Synthesis and characterization of linear and star-branched butadiene-isoprene block copolymers and their hydrogenated derivatives
… blocks form morphological domains that serve as physical crosslinking and reinforcement sites. The presence of semicrystalline segments in both the linear and starâ branched copolymers has important significance for processing. Above the endothermic melting temperature of the semicrystalline end. …
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New Segmented Block Copolymers Based on Hard and Soft Segments Using Selectively Reacting Bifunctional Coupling Agents
… reinforcement ability of the hard domains in a physical network was achieved as expected. As a consequence, the obtained final products have mechanical properties like a typical elastomeric material.
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W-SPSA : an Efficient Stochastic Approximation Algorithm for the off-line calibration of Dynamic Traffic Assignment models
… accuracy can deteriorate significantly when the physical network size and the number of considered time intervals increase. To overcome this problem, this thesis proposes a new algorithm, called Weighted SPSA, or W-SPSA. W-SPSA improves SPSA's gradient estimation process by effectively reducing …
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