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Proactive Data Dissemination Protocol on Distributed Dynamic Sink Mobility Management in Sensor Networks  

Hwang Kwang-Il (고려대학교 전자컴퓨터공학과 미래정보망연구실)
Eom Doo-Seop (고려대학교 전자컴퓨터공학과 미래정보망연구실)
Hur Kyeong (경인교육대학교 컴퓨터교육과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.9B, 2006 , pp. 792-802 More about this Journal
Abstract
In this paper, we propose an energy-efficient proactive data dissemination protocol with relatively low delay to cope well with highly mobile sink environments in sensor networks. In order for a dissemination tree to continuously pursue a dynamic sink, we exploit two novel algorithms: forward sink advertisement and distributed fast recovery. In our protocol, the tree is shared with the other slave sinks so that we call it Dynamic Shared Tree (DST) protocol. DST can conserve considerable amount of energy despite maintaining robust connection from all sources to sinks, since tree maintenance of DST is accomplished by just distributed local exchanges. In addition, since the DST is a kindof sink-oriented tree, each source on the DST disseminates data with lower delay along the tree and it also facilitates in-network processing. Through simulations, it is shown that the presented DST is considerably energy-efficient, robust protocol with low delay compared to Directed Diffusion, TTDD, and SEAD, in highly mobile sink environment.
Keywords
Energy Efficient Protocols; Mobile Communications; Network Protocols; Wireless Sensor Network;
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