An inter-networking mechanism with stepwise synchronization for wireless sensor networks.
An inter-networking mechanism with stepwise synchronization for wireless sensor networks.
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DOI：
10.3390/s110908241
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Murata M
中科院分区：
文献类型：
--
作者：
Yamamoto H;Wakamiya N;Murata M
为了实现环境信息社会，需要部署在区域内的多个无线网络和用户携带的设备相互配合。由于网络之间的工作周期和操作频率不同，我们需要一种机制来允许网络有效地交换消息。为此，我们提出了一种新颖的互联机制，其中两个网络以适度的方式彼此同步，我们称之为逐步同步。根据我们的建议，为了弥合固有工作频率之间的差距，网络边界附近的节点基于脉冲耦合振荡器模型作为同步的基本理论，逐步调整其工作频率。通过仿真实验，我们表明通信延迟和边界节点的能量消耗都减少了，这使得无线传感器网络彼此之间的通信时间更长。
To realize the ambient information society, multiple wireless networks deployed in the region and devices carried by users are required to cooperate with each other. Since duty cycles and operational frequencies are different among networks, we need a mechanism to allow networks to efficiently exchange messages. For this purpose, we propose a novel inter-networking mechanism where two networks are synchronized with each other in a moderate manner, which we call stepwise synchronization. With our proposal, to bridge the gap between intrinsic operational frequencies, nodes near the border of networks adjust their operational frequencies in a stepwise fashion based on the pulse-coupled oscillator model as a fundamental theory of synchronization. Through simulation experiments, we show that the communication delay and the energy consumption of border nodes are reduced, which enables wireless sensor networks to communicate longer with each other.
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