基于时空联合性的无线传感网覆盖采样技术  

Coverage Sampling Technology Based on Spatial-Temporal Joint Union for Wireless Sensor Networks

作　　者：蔡文郁[1] 张美燕[2] 蒋一波[3] 

机构地区：[1]杭州电子科技大学电子信息学院,杭州310018 [2]浙江水利水电专科学校电气系,杭州310018 [3]浙江工业大学计算机科学与技术学院,杭州310023

出　　处：《传感技术学报》2013年第2期260-265,共6页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目(61102067);浙江省自然科学基金(LQ12F03006)

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。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两个指标进行了验证。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.

关 键 词：无线传感网 覆盖控制 时空联合覆盖 时空联合性 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]