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 30 for “"high-speed networks"”.
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Approaches to High Speed Networks
… three channels implementations show near linear speedups. These results were then used to verify a model of the system used to calculate throughput values for systems with higher numbers of channels.</p> <p>In order to more fully examine other promising architectures, a simulation program was …
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Performance of High-Speed Networks for Real-Time Applications
… of network medium-access protocols at high data transfer rates for real-time applications. In a real-time network, on-time delivery of messages is essential. We can ensure the timely completion of tasks only when we can predict the message transmission delay over the network reasonably …
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Architectural study of high-speed networks with optical bypassing
… in wavelength division multiplexing (WDM) networks with no wavelength conversion. In a high-speed core network, the traffic can be separated into two components. The first is the aggregated traffic from a large number of small-rate users. Each individual session is not necessarily static …
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Quality-of-service provisioning in high speed networks : routing perspectives
… overhead is low enough to be implemented in real networks. Third, QoS routing is NP-complete. Hence, tackling this problem requires heuristics. A common approach is to convert this problem into a shortest path or k-shortest path problem and solve it by using existing algorithms such as …
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Quality of Service Provisioning in Wireless and High-Speed Networks
… bottleneck encountered in packet scheduling in high-speed wireline networks. The scheduler should be designed to provide minimum-bandwidth and delay guarantees, and fair sharing of excess bandwidth. In the state-of-the-art schedulers, based on the weighted fair queuing (WFQ) paradigm, packets …
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A NEW CONTROLLED VIDEO FRAME LOSS SCHEME FOR VIDEO TRANMISSION OVER HIGH SPEED NETWORKS
… control scheme for a video multiplexer to obtain high video multiplex load with acceptable video quality. This is termed "Controlled Video Frame Loss Scheme" (CVFL) and its implementation is discussed in detail in this thesis. By means of computer simulation, it is shown that the boundary …
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A study on fairness and latency issues over high speed networks and data center networks
Newly emerging computer networks, such as high speed networks and data center networks, have characteristics of high bandwidth and high burstiness which make it difficult to address issues such as fairness, queuing latency and link utilization. In this study, we first conduct extensive experimental …
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Performance and Security Trade-offs in High-Speed Networks. An investigation into the performance and security modelling and evaluation of high-speed networks based on the quantitative analysis and experimentation of queueing networks and generalised stochastic Petri nets.
Most used security mechanisms in high-speed networks have been adopted without adequate quantification of their impact on performance degradation. Appropriate quantitative network models may be employed for the evaluation and prediction of ¿optimal¿ performance vs. security trade-offs. Several …
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Multilevel Parallel Communications
… use of parallelism at multiple levels to realize high-speed networks that offer advantages in throughput, cost, reliability, and flexibility over alternative approaches. This research specifically considers use of parallelism at two levels: the "upper" level and the "lower" level. At the upper …
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The Design and Implementation of an Intelligent Agent-Based File System
… of user-level applications requiring high-capacity distributed file storage systems will demand that such services be universally available. At the same time, the advent of high-speed networks have made the deployment of application and communication solutions based upon an Intelligent …
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The design and implementation of a 3D graphics pipeline for the raw reconfigurable architecture
… and routing processors connected by several high-speed networks, and can be treated as a coarse-grained reconfigurable architecture. The graphics pipeline has four stages, and four-way parallelism in each stage, and is mapped on to a 16-tile Raw array. It supports basic rendering functions …
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Real-time Remote Visualization of Scientific Data
… amounts of simulation data. The present day high speed networks have made it possible to remotely visualize the data being generated by a supercomputer in real time. In order for such a system to be reliable, a robust communication protocol and an efficient compression mechanism are needed. …
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Planning And Scheduling For Large-scaledistributed Systems
… of autonomous systems interconnected by high-speed networks. To transform such a collection of systems into a user's virtual machine, we have to develop new algorithms for coordination, planning, scheduling, resource discovery, and other functions that can be automated. Then we can …
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Analysis of High-speed Data Transfer Protocols
… protocols. TCP Reno [62] cannot utilise the high-speed network capacity well while UDP does not provide reliable transmission of data. Sneakernet is also inefficient because of slow disk read/write times. Several TCP-based and UDP-based protocols have been proposed, however, a comparative …
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Network time : synchronisation in real time distributed computing systems
… Increasingly real time systems arc requiring high degrees of time synchronization. Where this is required, the common approach up until now has been to distribute the clock to each processor by means of hardware (e.g. GPS and cesium clocks) or to distribute time by means of an additional …
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Firewall Policy Optimization and Management
… complex. For example, a firewall connecting two high speed networks is responsible for processing heavy network load and can easily become a bottleneck. Therefore determining the appropriate action for arriving packets must be done as quickly as possible. The process of packet header matching can …
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Support Vector Machine Classification of Network Streams Using a Spectrum Kernel Encoding
… (academic, private, and public) that require high-speed networks these issues have not only become more pressing, but also more challenging. In particular, performance and security management rely heavily on automated tools that must operate in real-time, but creating real-time tools can be a …
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Using machine learning to guide automated intrusion response
… Though this is expected, particularly with networks containing sensitive data, it is not completely practical, considering the ever-growing demand for speed, scalability, and automation in computer networks. This work presents a proof of concept automated IRS that provides both for networks …
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Distributed load balancing over directed network topologies
Due to the increasing demand for high performance computing and the increasing availability of high speed networks, it has become possible to interconnect various geographically distributed computational elements (nodes) so that they can work cooperatively and obtain a performance not attainable by …
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Intrusion detection and prevention in advanced metering networks
… AMI, through the use of “smart meters” and high-speed networks, promises to strengthen both the stability and sustainability of the grid. The vision of AMI is to enhance and improve the grid by providing fine-grained control over pricing and usage to both the utility and the customers. The …
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