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Exploiting Node Mobility for Wireless Sensor Networks
PhD Thesis Proposal Defence Title: "Exploiting Node Mobility for Wireless Sensor Networks" by Mr. Ji LUO Abstract: A fundamental evolution is witnessed in recent research and development of wireless sensor networks: the capabilities of the sensor nodes have gone broader beyond a static sensing device; and now they include node mobility. In this proposal, we present our current research status on exploiting node mobility in wireless sensor networks. We first investigate the impact of node mobility on localization which is the fundamental issue in mobile sensor networks. By leveraging different types of relative distance constraints, we propose a distributed and range free Mobile Inequality Localization (MIL) algorithm, which is quickly re-localizable when all sensors are moving uncontrollably. With location awareness, we further analyze several unique issues in mobile sensor networks. One issue is about the coverage with mobile sensor nodes. By introducing the concept of probabilistic coverage, we develop a basic platform to provide the realtime coverage status for a given region. In addition, we address a double-mobility problem in coverage and propose a distributed protocol SSC to collaborate between controllable and uncontrollable mobility to maintain the coverage. The other issue is about the event collection. By leveraging the spatial-temporal correlation of events, we propose an online scheme for mobile nodes to selectively collect event information. We also present an intelligent approach to design feasible path for mobile sinks. Several ongoing and future works include: building a testbed for measuring the energy usage in buildings, and investigating how to improve the energy efficiency for green buildings where the personnel and some assets are mobile. Date: Wednesday, 3 March 2010 Time: 4:30pm - 6:30pm Venue: Room 3416 lifts 17/18 Committee Members: Dr. Qian Zhang (Supervisor) Prof. Lionel Ni (Chairperson) Dr. Lin Gu Prof. Bo Li **** ALL are Welcome ****