Problem Statement and Motivation

Key Achievements and Future GoalsTechnical Approach

MOBI-DIC: MOBIle DIscovery of loCal resourcesInvestigators: Ouri Wolfson and Bo Xu, Computer Science Dept.

Prime Grant Support: NSF

• Currently, while on the move, people cannot efficiently search for local resources, particularly if the resources have a short life, e.g. an available parking slot, or an available workstation in a large convention hall.

• Applications in matchmaking and resource discovery in many domains, including

• social networks• transportation and emergency response • mobile electronic commerce.

• Developed and analyzed search algorithms for different mobility environments and communication technologies.

• Designed a comprehensive simulation system that enables selection of a search algorithm.

• Built a prototype system• Published 6 papers, received $250k in NSF support, delivered two

keynote addresses on the subject.• Submitted provisional patent application• Future goals: design complete local search system, combine with

cellular communication to central server, test technology in real environment, transfer to industry.

• Use Database and Publish/Subscribe technology to specify profiles of interest and resource information

• Peer-to-Peer information exchange among mobile devices such as cell phones and pda’s, that form ad hoc network

• Exchange uses short-range, unlicensed wireless communication spectrum including 802.11 and Bluetooth.

• Exchanged information is prioritized according to a spatial-temporal relevance function to reduce bandwidth consumption and cope with unreliable wireless connections.

• Adaptive push/pull of resource information

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