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基于位置的无线传感器网络可靠性区分服务机制 被引量：7

Location based reliability differentiation service for WSN
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摘要 如何根据不同任务的不同可靠性需求来提供相应的服务是无线传感器网络所面临的最重要问题之一。结合基于位置的路由机制,给出衡量可靠性的量化度量模型,该模型无需全局网络拓扑信息。通过引入虚拟参考点,将数据的转发限制在特定区域从而减少无关传感器节点的能耗。分析了该区域与可靠性的函数关系,得到了可靠性随着参考点与源节点距离的增长而平方级增长的结论。在此基础上给出区分可靠性的服务机制。实验结果表明所提机制有效。 How to design reliability differentiated service for missions with different reliability requirements becomes one of hot topics in wireless sensor networks. Combined with location-based routing mechanism, a quantified model without full network topology was proposed to evaluated reliability. By introducing a virtual reference point, the data transfer was limited in a specified area. The reliability function of the area was given. A detailed analysis shows that the function increases quadratically with the distance between the source node and the reference node. Based on the above conclusion, a reliability differentiated service mechanism was proposed. Simulation results show the efficiency of proposed mechanism.
作者 曾勇 马建峰
机构地区 西安电子科技大学计算机学院
出处 《通信学报》 EI CSCD 北大核心 2008年第2期71-78,共8页 Journal on Communications
基金 国家自然科学基金资助项目(90204012,60633020,60503012) 陕西省自然科学基础研究计划资助项目(2007F37) 国家高技术研究发展计划(“863”计划)基金资助项目(2007AA01Z429,2007AA01Z405)~~
关键词 无线传感器网络 可靠性 服务区分 基于定位的路由机制 wireless sensor network reliability service differentiated location-based routing mechanism
分类号 TP302.8 [自动化与计算机技术—计算机系统结构]
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参考文献12

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二级参考文献26

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共引文献462

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引证文献7

二级引证文献21

通信学报
2008年 第2期

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