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基于时空联合性的无线传感网覆盖采样技术
引用本文:蔡文郁,张美燕,蒋一波.基于时空联合性的无线传感网覆盖采样技术[J].传感技术学报,2013,26(2).
作者姓名:蔡文郁  张美燕  蒋一波
作者单位:杭州电子科技大学电子信息学院,杭州310018;浙江水利水电专科学校电气系,杭州,310018;浙江工业大学计算机科学与技术学院,杭州,310023
基金项目:基于多尺度时空相关性的无线传感网自适应优化采样技术研究
摘    要:覆盖采样作为无线传感器网络领域的一个基本问题,已经得到了广泛研究。但是目前研究大多只考虑空间覆盖性和网络生存周期等因素,并没有从实用的角度考虑覆盖区域的时空域覆盖特性。本文以综合考虑空间域和时间域为研究视角,提出了一种新型的以应用为导向的覆盖率指数,研究了一种基于时空联合性的无线传感网覆盖采样机制。最后通过时空覆盖率与事件侦测率指标两个指标进行了验证。

关 键 词:无线传感网  覆盖控制  时空联合覆盖  时空联合性

Coverage Sampling Technology based on Spatial-Temporal Joint Union for Wireless Sensor Networks
Abstract:Coverage sampling technology has been studied extensively, which is a prime problem of wireless sensor networks. However, most researches only consider spatial coverage and network lifetime factors, therefore, few of them investigates spatial-temporal coverage concept from a practical view. In this paper, a new coverage ratio index is induced with comprehensive consideration in the spatial domain and temporal domain. Moreover, a novel coverage sampling technology based on spatial-temporal joint union for wireless sensor networks is proposed. Finally, the proposed algorithm is verified with two metrics including spatial-temporal coverage ratio and event detection ratio through simulations.
Keywords:Wireless Sensor Networks  Coverage Control  Spatial-Temporal Union  Joint Spatial-Temporal Coverage
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