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 20 of 50 for “"Network Reliability"”.
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Network reliability estimation
Computing the reliability of a network is a #P-complete problem, therefore estimation by means of simulation often becomes a favourable choice. In modern communication networks, link failure probabilities are usually small and hence network failures become rare events. This poses a challenge to …
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Network Reliability: Theory, Estimation, and Applications
Network reliability is the probabilistic measure that determines whether a network remains functional when its elements fail at random. Definition of functionality varies depending on the problem of interest, thus network reliability has much potential as a unifying framework to study a broad range …
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Network Reliability Analysis under the Multivariate Normal Model
… in the design of robust HF communication networks. Ionospheric characteristics vary temporally and will be spatially correlated. As a result, link failures within an HF network may also be correlated. In this thesis we develop a novel model for probabilistic link failures that captures the …
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Implementing an approximation scheme for all terminal network reliability
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
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Soft Computing To Sensor Network Reliability, Systems And Their Fpga Implementation
… complex problems like unmanned Ground Vehicles Reliability(UGVR), Crack Detection and Impact Source Identification (CDISI) where there is lack of precision, certainty and complete truth. This dissertation describes some novel applications of SC in area of sensor networks (SN) and systems with …
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Modeling and analysis of trustworthy systems using extensions of network reliability
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Application of Network Reliability to Analyze Diffusive Processes on Graph Dynamical Systems
Moore and Shannon's reliability polynomial can be used as a global statistic to explore the behavior of diffusive processes on a graph dynamical system representing a finite sized interacting system. It depends on both the network topology and the dynamics of the process and gives the probability …
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Efficient Design and Management of Reliable Optical Networks
… it is important to be able to optimize the network using soft solutions to achieve better performance. A few important aspects of network reliability and failure management are studied in this thesis. First, a study on the impact of multiple failures and techniques for addressing such …
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System reliability analysis methods for rapid multi-scale network risk assessment and decision making
… responses, it is essential to evaluate the reliability of infrastructure networks accurately and efficiently and if needed, to make a reasonable decision under a budgetary constraint on retrofitting prioritization of vulnerable components. In general, however, network analysis is highly …
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Deployment Policies to Reliably Maintain and Maximize Expected Coverage in a Wireless Sensor Network
<p>The long-term operation of a wireless sensor network (WSN) requires the deployment of new sensors over time to restore any loss in network coverage and communication ability resulting from sensor failures. Over the course of several deployment actions it is important to consider the cost of …
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High-reliability architectures for networks under stress
… we develop a methodology for architecting high-reliability communication networks. Previous results in the network reliability field are mostly theoretical in nature with little immediate applicability to the design of real networks. We bring together these contributions and develop new results …
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Fault Tolerance and Performance Improvement in Multiprocessor Interconnection Networks (shuffle-Exchange, Redundant-Path Array Processors)
… of fault-tolerant multistage interconnection networks is introduced, wherein fault tolerance is achieved by providing non-unique paths between each input and each output. The topology of the multiple paths is specified by means of a redundancy graph. Different techniques for constructing such …
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Determination of reliability indices for congestion on urban arterial streets
… The objective of this thesis is to develop a reliability index quantifying the spatial and temporal distribution of traffic congestion on urban arterial streets. Delays caused due to recurrent and non-recurrent congestion need to be differentiated. Two approaches for estimating road network …
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Reliability analysis of distribution network
The knowledge of the reliability of distribution networks and systems is important consideration in the system planning and operations for development and improvements of power distribution systems. To achieve the target as minimum interruptions as possible to customers, utilities must strive to …
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A Comprehensive Analysis of Station Performance for the Nevada Seismological Laboratory Network
… and over time has installed a robust seismic network to accomplish this goal. This study explores the seismic stations managed by the NSL with the aim of integrating sophisticated systems like ShakeAlert into Nevada's infrastructure to enhance community safety in the face of seismic hazards. A …
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Reliable Ethernet
<p>Networks within data centers, such as connections between servers and disk arrays, need lossless flow control allowing all packets to move quickly through the network to reach their destination. This paper proposes a new algorithm for congestion control to satisfy the needs of such networks and …
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Using probability density functions to analyze the effect of external threats on the reliability of a South African power grid
The implications of reliability based decisions are a vital component of the control and management of power systems. Network planners strive to achieve an optimum level of investments and reliability. Network operators on the other hand aim at mitigating the costs associated with low levels of …
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Distribution System Reliability Evaluation Using Both Analytical And Simulation Approaches
… configurations and operating models on system reliability. This thesis presents a generalized analytical technique to extend and simplify the procedure for determining the reliability of a distribution system with branches and with different operating schemes. In this approach, a series of …
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Reliability management framework for softwarized networks
The Software-Defined Networking (SDN) technologies promise to enhance the performance, reliability, and cost of managing both wired and wireless network infrastructures, functions, controls, and services (i.e., Internet of Things). However, centralized reliability management in Softwareization …
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Efficiently Estimating Survival Signature and Two-Terminal Reliability of Heterogeneous Networks through Multi-Objective Optimization
<p>The two-terminal reliability problem is a classical reliability problem with applications in wired and wireless communication networks, electronic circuit design, computer networks, and electrical power distribution, among other systems. However, the two-terminal reliability problem is among the …
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