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Information quality model and optimization for 802.15.4-based wireless sensor networks

Published: 01 November 2011 Publication History

Abstract

High information quality is a paramount requirement for wireless sensor network (WSN) monitoring applications. However, it is challenging to achieve a cost effective information quality solution due to unpredictable environment noise and events, unreliable wireless channel and network bandwidth, and sensor resource and energy constraints. Specifically, the dynamic and unreliable nature of WSNs make it difficult to pre-determine optimum sensor rates and predict packet loss. To address this problem, we present an information quality metric which characterizes information quality based on the sampling frequency of sensor nodes and the packet loss rate during network transmission. Our fundamental quality metric is based on signal-to-noise ratio and is therefore application independent. Based on our metric, a quality-aware scheduling system (QSS) is developed, which exploits cross-layer control of sensor nodes to effectively schedule data sensing and forwarding. Particularly, we develop and evaluate several QSS scheduling mechanisms: passive, reactive and perceptive. These mechanisms can adapt to environment noise, bandwidth variation and wireless channel collisions by dynamically controlling sensor rates and phase. Our experimental results indicate that our QSS is a novel and effective approach to improve information quality for WSNs.

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  • (2017)Design and analysis of collision free MAC for wireless sensor networks with or without data retransmissionJournal of Network and Computer Applications10.1016/j.jnca.2016.12.02080:C(10-21)Online publication date: 15-Feb-2017
  • (2016)Adaptive Sensor Node Sleep Scheduling for Quality-of-Experience EnhancementInternational Journal of Distributed Sensor Networks10.1155/2016/69608762016(13)Online publication date: 1-Mar-2016
  • (2016)A flexible framework for assessing the quality of information in wireless sensor networksInternational Journal of Distributed Sensor Networks10.1155/2015/4859542015(181-181)Online publication date: 1-Jan-2016
  1. Information quality model and optimization for 802.15.4-based wireless sensor networks

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        Published In

        cover image Journal of Network and Computer Applications
        Journal of Network and Computer Applications  Volume 34, Issue 6
        November, 2011
        281 pages

        Publisher

        Academic Press Ltd.

        United Kingdom

        Publication History

        Published: 01 November 2011

        Author Tags

        1. Modeling and performance evaluation
        2. Rate and bandwidth control

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        • (2017)Design and analysis of collision free MAC for wireless sensor networks with or without data retransmissionJournal of Network and Computer Applications10.1016/j.jnca.2016.12.02080:C(10-21)Online publication date: 15-Feb-2017
        • (2016)Adaptive Sensor Node Sleep Scheduling for Quality-of-Experience EnhancementInternational Journal of Distributed Sensor Networks10.1155/2016/69608762016(13)Online publication date: 1-Mar-2016
        • (2016)A flexible framework for assessing the quality of information in wireless sensor networksInternational Journal of Distributed Sensor Networks10.1155/2015/4859542015(181-181)Online publication date: 1-Jan-2016

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