摘要
传感器节点的数量关系到无线传感器网络的总成本和网络的性能,是设计无线传感器网络优先考虑的问题。对无线传感器网络部署中重点考虑的覆盖、连通性和节能问题进行了讨论,基于网格法对几种不同的传感器部署方案进行分析,计算了它们的有效覆盖面积和有效覆盖率。通过计算和分析可知,传感器按等边三角形部署时,重叠区域小,需要的传感器数量少,是最理想的部署策略。
The number of sensor nodes is related to the total cost of wireless sensor networks and networks ＇ performance,it is considered firstly while wireless sensor networks are designed. The questions such as coverage, connectivity and energy saving are considered with emphasis in deployment of wireless sensor networks are discussed. Several different sensors＇ deployment schemes based on grid method are analyzed and their efficient coverage areas and their efficient coverage rate are computed. It shows by computation and analysis that when sensor is deployed in the form of equilateral triangle the deployment strategy is the best as it has the smallest overlapping area and requires the least number of sensors.
出处
《传感器与微系统》
CSCD
北大核心
2012年第3期150-152,共3页
Transducer and Microsystem Technologies
基金
校级基金资助项目(J090074102)
关键词
网格法
无线传感器网络
传感器部署
有效覆盖
grid method wireless sensor networks sensor deployment efficient coverage
