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 41 for “"Wide Area Networks"”.
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Modelling adaptive routing in Wide Area Networks
… reference to the algorithm of an existing Wide Area Network (WAN). Packets in the network are routed at each node on the basis of routing tables which contain internal and external delays for each route from the node. The internal delay on a route represents the time that packets queued for …
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Live migration of user environments across wide area networks
… of a user’s operating system instance across wide area links. Live migration is done by performing most of the migration while the operating system is still running, achieving very little downtime and preserving all network connectivity. I developed an initial proof of concept of this …
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Efficient topology update on high speed wide area networks
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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Software-defined wide-area networks for distributed microgrid power systems
… increasingly taken advantage of packet-switching networks for control and data acquisition. A major example is the realization of the smart grid. On the networking side, software-defined networking (SDN) has been trending for the past decade. With the help of SDN, we are moving towards power grids …
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Flexible application driven network striping over Wireless Wide Area Networks
… that facilitates flexible striping over Wireless Wide Area Network (WWAN) channels. Horde is unusual in that it separates the striping policy from the striping mechanism. It allows applications to describe network Quality-of-Service (QoS) objectives that the striping mechanism attempts to satisfy. …
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Resource management and IP interoperability for low power wide area networks
Low Power Wide Area Networks (LPWANs) such as LoRaWAN, Sigfox, and NBIoT present a novel communication paradigm, which complements the traditional short-range Wireless Sensor Networks (WSNs). LPWANs promise to provide wide-area connectivity (up to tens of kilometers) and low-power operations (up to …
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Engineering and evaluating bulk data transfer planning over wide area networks
Users of cloud computing services are faced with the problem of planning and transferring large amounts of data across a geographically dispersed network under time and budget constraints. Pandora is the first service to solve the planning problem but underneath it has a set of issues, which are …
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Large Scale Analysis and Scalability Enhancements for Low Power Wide Area Networks
… industry sectors. The new paradigm of Low Power Wide Area Networks (LPWAN) contributes to this by enabling the deployment of cheap lowpower wireless devices, allowing for pervasive smart city applications. However, research into LPWANs is in the preliminary stages, with much analysis to be done …
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A fundamental approach for providing service-level guarantees for wide-area networks
… of dollars augmenting the capacity of their wide-area backbones and devote significant effort to efficiently utilizing WAN capacity. A key challenge is striking a good balance between network utilization and availability, as these are inherently at odds; a highly utilized network might not be …
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A one-round algorithm for virtually synchronous group communication in wide area networks
… semantics and is aimed for deployment in wide-area networks (WANs). The design features a novel algorithm for implementing Virtual Synchrony semantics; the algorithm is more appropriate for WANs than the existing solutions because it involves fewer rounds of communication and operates in a …
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Quality of service analysis for audio over cellular voice networks and cellular wireless wide area networks
Cellular Wireless Wide Area Networks (WWANs) are most prevalent and offer high-bandwidth data transfer. We believe WWANs can be availed for voice communications employing Voice Over IP technologies. Such a communication will be of better quality and offer higher resilience compared to voice …
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IP ROUTING AND KEY MANAGEMENT FOR SECURE MULTICAST IN SATELLITE ATM NETWORKS
… to extend IP multicast services for groups in wide-area networks. This poses interesting challenges for routing and security. Satellite networks can have wired and wireless links and different link-layer technologies like Ethernet and ATM. For security, the multicast traffic should be …
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The SPRAWL distributed stream dissemination system
… the public Internet or on their own internal networks. These customers often depend on that data being delivered in a timely and resource-efficient manner. In addition, many customers subscribe to the same or similar data products (e.g., particular types of financial feeds, or feeds of …
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WebRTC based network performance measurements
… connections achieve gigabit speeds, local area networks (LANs) become the main bottleneck for users connection. Currently, network performance tests focus on end-to-end performance over wide-area networks and provide no platform-independent way to tests LANs in isolation. To fill this gap, …
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Efficient Consensus and Synchronization for Distributed Systems
… a large number of servers communicating over wide-area networks. We propose near-optimal solutions to two fundamental problems in the design and implementation of such systems: consensus and synchronization. First, we propose a universal decomposition of distributed consensus protocols that …
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Modeling and Estimation Techniques for Wide-Area Network Traffic with Atypical Components
… step to improving existing and designing future wide-area networks is an understanding of the load placed on these networks. Efforts to model traffic are often confounded by atypical traffic - traffic particular to the observation site not ubiquitously applicable. The causes and characteristics …
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Quality of Service Provisioning in Integrated Service Networks
… of Service) provisioning in integrated service networks from network design and management perspectives. The main features of this work are summarized below. (1) A systematic procedure for full bandwidth allocation is proposed using a linear system with constraints applied to the design and …
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Use of deterministic execution in testing and debugging of distributed software
Large-scale networks are among the most complex software infrastructures in existence. Unfortunately, the increasing complexity of its software requirements leads to a rich variety of nondeterministic failure modes and anomalies. Research on testing and debugging modern distributed software has …
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Tavarua : a mobile telemedicine system using WWAN striping
… mobile telemedicine systems over wireless wide area networks, WWANs. It utilizes network striping and other complementary techniques to send uni-directional near real time video and audio data streams from a imobile node to a stationary location. The key technical challenge is transmitting …
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