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 25 for “"Service differentiation"”.
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Service Differentiation Using Managed Sleep in CSMA/CA Networks
… to this problem is to introduce Quality of Service (QoS) into today's most common networking protocols. Many different mechanisms for bringing quality of service to computer networks have been proposed, but less research has been aimed specifically at the data link layer of wireless …
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Ieee 802.15.4 Wireless Sensor Networks: Gts Scheduling and Service Differentiation
… Time Slot (GTS) to provide real-time guaranteed service for delay-sensitive applications. In the nonbeacon-enabled network the GTS is reserved time slots such that it is requested, allocated and scheduled to wireless sensors that need guaranteed service for delay-sensitive applications. Existing …
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Dynamic bandwidth management with service differentiation over ethernet passive optical networks
… of the communication infrastructure between the service provider central offices and the customer sites. As a low-cost, high speed technology, EPONs are deemed as the solution to the bottleneck problem of the broadband access network. A major feature of EPONs is the utility of a shared upstream …
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IP-based virtual private networks and proportional quality of service differentiation
… cost-effective, secure, and private network-like services. Having surveyed current enabling techniques, an overall picture of IP VPN implementations is presented. In order to provision the equivalent quality of service (QoS) of legacy connection-oriented layer 2 VPNs (e.g., Frame Relay and ATM), …
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Quality-consciousness in Large-scale Content Distribution in the Internet
… are addressed: 1) client latency, 2) service differentiation, and 3) content quality. Data analysis shows that the existing multicast scheduling algorithms behave unfairly when the access conditions for the popular files changes. They favor the popular files while penalizing the files …
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Efficient Design and Management of Reliable Optical Networks
… addressing such failures are presented. Second, service differentiation based on reliability needs is studied. Service differentiation is critical in balancing network operation costs as well as in maximizing network utilization. Third, a cost-efficient, high-speed recovery scheme is introduced …
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A Framework for policy-based Quality of Service for fixed broadband wireless networks
… an architecture for policy-based quality of service (QoS) for fixed broadband wireless systems. An implementation of the proposed architecture for the Local Multipoint Distribution Service (LMDS) wireless network in Blacksburg, Virginia is described in detail. The focus of the research work …
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Connection admission control and packet scheduling for IEEE 802.16 networks
… the capability to simultaneously support various service types with required QoS characteristics. ... While IEEE 802.16 standard defines medium access control (MAC) and physical (PHY) layers specification, admission control and packet scheduling mechanisms which are important elements of QoS …
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The structure, conduct, and performance of Nevada's slot route industry
… their own niche either through product or service differentiation; Firms in concentrated industries tend to earn monopoly profits. Yet, using Tobin's q and Jensen's coefficient, we show that Nevada's slot route firms did not earn excess profits, despite the high degree of industrial …
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Flow-oriented anomaly-based detection of denial of service attacks with flow-control-assisted mitigation
Flooding-based distributed denial-of-service (DDoS) attacks present a serious and major threat to the targeted enterprises and hosts. Current protection technologies are still largely inadequate in mitigating such attacks, especially if they are large-scale. In this doctoral dissertation, the …
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Scale and differentiation in services : using information technologies to manage customer experiences at Harrah's Entertainment and other companies
This dissertation is focused on the topic of service innovation and explores economies of scale and strategic differentiation in services via an inductive field-based case study of the world's largest casino gaming company, Harrah's Entertainment. It includes comparisons to services firms in other …
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Improving fairness, throughput and blocking performance for long haul and short reach optical networks
… probability and differentiated quality of service (QoS). Novel algorithms and new approaches have been presented to improve the performance of optical circuit switching (OCS) and optical burst switching (OBS) for long haul, and datacenter networks. Extensive simulations tests have been …
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Design of Media Access Control Schemes for Performance Enhancement of Future Generation Wireless Systems
… are examined: maximizing network throughput and service differentiation. Firstly, a novel MAC scheme is proposed that makes use of Multiple-Input, Multiple-Output (MIMO) antenna technology to improve overall network throughput. The proposed MIMO-Aware MAC (MA-MAC) scheme utilizes the beamforming …
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Tourists' satisfaction with services
… and satisfaction with the quality of the tourism services in Saudi Arabia. In recent years, one of the areas for product and service differentiation has been the development of tourism services. In service industries, it is widely assumed that competitive advantage, and hence profitability, …
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Network disaster recovery via dynamic service-aware risk management
… and human-induced disasters, which result in service disruption and economic losses. Most existing disaster recovery frameworks treat risk as a static factor, overlooking the fact that hazard conditions evolve over time. For example, in earthquakes, failures propagate outward from the …
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An admission control scheme for IEEE 802.11e wireless local area networks
… network technology to support IP multimedia services. However a traditional WLAN does not provide Quality of Service (QoS) support since it was originally designed for best effort operation. The IEEE 802. 11e standard was introduced to overcome the lack of QoS support for the legacy IEEE 802 …
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Naming and discovery in networks : architecture and economics
… naming and discovery schemes in terms of service differentiation and economic incentives. One of the recurring themes in the community is the need to separate an entity's identifier from its locator to enhance mobility and security. Separation of identifier and locator is a widely accepted …
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Location-Aware Protocols for Energy-Efficient Information Processing in Wireless Sensor Networks
… 2) data dissemination or node reprogramming; 3) service differentiation; and 4) data collection. Work on self-organization (SCARE) and data dissemination (LAF) was carried out from 2002 to 2004 and the work on service differentiation (SensiQoS) and data collection (HTDC) was carried out from 2004 …
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Fiber-Wireless Sensor Networks for Monitoring Distributed Generation in a Smart Grid Environment
… faults). Therefore, appropriate Quality of Service (QoS) mechanisms are needed to satisfy the delay requirements of these SMR events. In this thesis, a number of location-dependent communication topologies to monitor and control SMR units are evaluated. A ranking system to rank different …
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Creation and capture of new uncontested market space: The case of pharmaceutical business in Tanzania
… is restricted by Act of Parliament, product or service differentiation strategies which include advertising are difficult to implement. Section 98 of the 2003 Tanzania Food, Drugs and Cosmetics Act imposes tough restrictions on advertising or promoting products regulated by the Act. Thus …
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