A Data-Centric Mechanism for Wireless Sensor Networks with Weighted Queries

doi:10.1109/JCPC.2009.5420202

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題名:	A Data-Centric Mechanism for Wireless Sensor Networks with Weighted Queries
作者:	Hung, Li-Ling;Chang, Sheng-Wen;Chang, Chih-Yung;Chen, Yu-Chieh
貢獻者:	淡江大學資訊工程學系
日期:	2009-12
上傳時間:	2011-10-24 11:25:33 (UTC+8)
出版者:	Taipei : Institute of electrical and electronics engineers (IEEE)
摘要:	Wireless sensor networks (WSNs) are characterized by their low bandwidth, limited energy, and largely distributed deployment. To reduce the flooding overhead raised by transmitting query and data information, several data-centric storage mechanisms are proposed. However, the locations of these data-centric nodes significantly impact the power consumption and efficiency for information queries and storage capabilities, especially in a multi-sink environment. This paper proposes a novel dissemination approach, which is namely the dynamic data-centric routing and storage mechanism (DDCRS), to dynamically determine locations of data-centric nodes according to sink nodes' location and data collecting rate and automatically construct shared paths from data-centric node to multiple sinks. To save the power consumption, the data-centric node is changed when new sink nodes participate when the WSNs or some queries change their frequencies. The simulation results reveal that the proposed protocol outperforms existing protocols in terms of power conservation and power balancing.
關聯:	Proceedings of the 2009 joint conferences on pervasive computing, pp.131-136
DOI:	10.1109/JCPC.2009.5420202
顯示於類別:	[資訊工程學系暨研究所] 會議論文

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