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Physical Sciences and Mathematics Commons

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Computer Sciences

Dartmouth Scholarship

2003

Mobile computing

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Full-Text Articles in Physical Sciences and Mathematics

Mobicom Poster: Evaluating Location Predictors With Extensive Wi-Fi Mobility Data, Libo Song, David Kotz, Ravi Jain, Xiaoning He Oct 2003

Mobicom Poster: Evaluating Location Predictors With Extensive Wi-Fi Mobility Data, Libo Song, David Kotz, Ravi Jain, Xiaoning He

Dartmouth Scholarship

A fundamental problem in mobile computing and wireless networks is the ability to track and predict the location of mobile devices. An accurate location predictor can significantly improve the performance or reliability of wireless network protocols, the wireless network infrastructure itself, and many applications in pervasive computing. These improvements lead to a better user experience, to a more cost-effective infrastructure, or both. Location prediction has been proposed in many areas of wireless cellular networks as a means of enhancing performance, including better mobility management, improved assignment of cells to location areas, more efficient paging, and call admission control. To the …


Computational Markets To Regulate Mobile-Agent Systems, Jonathan Bredin, David Kotz, Daniela Rus, Rajiv T. Maheswaran, Cagri Imer, Tamer Başar May 2003

Computational Markets To Regulate Mobile-Agent Systems, Jonathan Bredin, David Kotz, Daniela Rus, Rajiv T. Maheswaran, Cagri Imer, Tamer Başar

Dartmouth Scholarship

Mobile-agent systems allow applications to distribute their resource consumption across the network. By prioritizing applications and publishing the cost of actions, it is possible for applications to achieve faster performance than in an environment where resources are evenly shared. We enforce the costs of actions through markets where user applications bid for computation from host machines. \par We represent applications as collections of mobile agents and introduce a distributed mechanism for allocating general computational priority to mobile agents. We derive a bidding strategy for an agent that plans expenditures given a budget and a series of tasks to complete. We …


Context-Sensitive Resource Discovery, Guanling Chen, David Kotz Mar 2003

Context-Sensitive Resource Discovery, Guanling Chen, David Kotz

Dartmouth Scholarship

This paper presents the “Solar” system framework that allows resources to advertise context-sensitive names and for applications to make context-sensitive name queries. The heart of our framework is a small specification language that allows composition of “context-processing operators” to calculate the desired context. Resources use the framework to register and applications use the framework to lookup context-sensitive name descriptions. The back-end system executes these operators and constantly updates the context values, adjusting advertised names and informing applications about changes. We report experimental results from a prototype, using a modified version of the Intentional Naming System (INS) as the core directory …