Research of post-Synchronization Mechanism based on Cross Layer Design in Wireless Sensor Network
首发时间:2011-03-17
Abstract:This paper introduces a typical kind of time synchronization method based on cross layer consideration. The typical design of a network system mainly follows the OSI separated model. The whole design progress is always implemented without considering of the interaction with different layers. The improved post synchronization mechanism proposed in this paper presents a self correction method of estimating the crystal oscillation drift based on the cross layer consideration-the unification design of physical and media access control layer. The experiment results from wireless MCU Si1000 illustrate that the improved post synchronization using cross layer design is able to keep a stable operation of network in the way of prolong the synchronization period and reducing the cost of synchronous actions.
keywords: Wireless Sensor Network Time Synchronization Cross Layer
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一种基于跨层设计的无线传感器网络后同步机制的研究
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