Exploiting affinity propagation for energy-efficient information discovery in sensor networks
Doss, Robin and Li, Gang 2008, Exploiting affinity propagation for energy-efficient information discovery in sensor networks, in GLOBECOM 2008 : Proceedings of the IEEE Global Telecommunication Conference, IEEE, Piscataway, N.J., pp. 735-740.
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GLOBECOM 2008 : Proceedings of the IEEE Global Telecommunication Conference
Global Telecommunications Conference
Place of publication
Wireless sensor networks (WSN) are attractive for information gathering in large-scale data rich environments. Emerging WSN applications require dissemination of information to interested clients within the network requiring support for differing traffic patterns. Further, in-network query processing capabilities are required for autonomic information discovery. In this paper, we formulate the information discovery problem as a load-balancing problem, with the combined aim being to maximize network lifetime and minimize query processing delay. We propose novel methods for data dissemination, information discovery and data aggregation that are designed to provide significant QoS benefits. We make use of affinity propagation to group "similar" sensors and have developed efficient mechanisms that can resolve both ALL-type and ANY-type queries in-network with improved energy-efficiency and query resolution time. Simulation results prove the proposed method(s) of information discovery offer significant QoS benefits for ALL-type and ANY-type queries in comparison to previous approaches.
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