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Data Dissemination Protocol Considering Target Mobility in Ubiquitous Sensor Network  

Suh Yu-Hwa (숭실대학교 컴퓨터학과 통신연구실)
Kim Ki-Young (서일대학 소프트웨어)
Shin Young-Tae (숭실대학교 컴퓨터학과 통신연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.3A, 2006 , pp. 311-320 More about this Journal
Abstract
This paper proposes DDTM for USN having end-point mobility. The existing network protocols did not consider target's and sink's mobility. So it requires flooding and path update whenever targets or sinks move. This can lead to drain battery of sensors excessively and decrease lifetime of USN. DDTM is the protocol based on TTDD considering sink's mobility. TTDD provides sink's mobility efficiently by using the grid structure, but it requires the high energy because of reconstructing the grid structure whenever targets move. In this way, the proposed protocol can decrease a consumption of energy, since it reuses the existing grid structure of TTDD, if the target moves in local cell. We compare DDTM with TTDD under the total message and the energy consumption by using a discrete analytical model for cost analysis. Analytical results demonstrated that our proposed protocol can provide the higher efficiency on target's mobility.
Keywords
USN; Target; Sensing Data; Sink; Mobility;
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