无线传感器网络覆盖性能研究

Research on Coverage Performance in Wireless Sensor Network

针对无线传感器网络的覆盖性能问题,已有研究大都集中于节点的优化放置、定位等内容,对在复杂环境中评价指标的量化关注较少。首先分析影响覆盖性能的主要因素;然后对数据融合模型及策略进行讨论,找到模型选择的依据;接着从理论的角度探讨采用数据融合方式下的覆盖性能评价及两者之间的关系,发现融合范围与覆盖范围和网络密度的关系。应用环境相关的最优融合范围可以通过试验取经验值或者通过分析推导出近似解。

To address coverage performance of wireless sensor networks issues,most studies have focused on the optimization of node placement,positioning,etc.,in a complex environment,pay less attention to the quantitative evaluation.The paper first analyzed the performance of the main factors affecting coverage.Secondly,the data fusion model and strategy were discussed to find a basis for model selection.Then from a theoretical point of view of the use of data fusion performance evaluation of the coverage under way and the relationship between the two,found integration of range and network density and coverage relationship,an optimal integration of environment-related application range can be obtained by experiment or experience derived through the analysis of the approximate solution.