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《中国工程科学》 >> 2008年 第10卷 第9期

基于室内传播模型的无线传感器网络节点部署策略研究

北京交通大学电子信息工程学院,北京100044

收稿日期 :2007-03-05 修回日期 :2007-09-22 发布日期 :2008-09-18 14:52:18.000

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摘要

为保证在室内部署无线传感器网络节点时实现感知面积完全覆盖特定区域,在2.4 GHz的ISM频段,依据对数距离模型,分析了因天线高度不同引起的节点有效覆盖面积的变化问题,讨论了有效通信半径与有效感知半径的关系。在传统的平面节点部署方法的基础上,提出了一种考虑天线高度等环境因素的室内无线传感器网络节点快速部署方案,定义了部署规则和补充规则,从而避免了因天线高度变化而引起的感知黑洞的产生。仿真和试验结果表明该方案可以有效保证规定区域的完全覆盖,具有应用价值。

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