基于概率感知模型的有向传感器确定性部署研究

Deterministic Deployment of Sensors Based on Probabilistic Sensing Model

节点部署是无线传感器网络技术应用过程中的关键问题。为了更加精确地描述网络对物理世界的感知范围和质量,本文采用由自身物理特性等诸多因素决定的概率感知节点对监测区域进行无缝覆盖。针对无线有向传感器网络中节点的概率感知特性,通过数值仿真,从冗余覆盖面积及感知概率两方面,分析比较采用不同确定性部署方式对同一监测的无缝覆盖。实验结果对区域覆盖的确定性节点部署方式的选择具有重要的指导性意义。

Node deployment is a key problem in the applicationof wireless sensor network technology. In order to describe the scopeand quality of the physical world more accurately, this paper usesthe probability sensing nodes, which are determined by the physicalcharacteristics and other factors, to make seamless coverage of themonitoring area. Aiming at the wireless to the probability sensing propertiesof the nodes in the sensor network, through the numerical simulation, fromredundant coverage area and the perceived probability of two aspects.Analysis was used to compare different deterministic deployment ofmonitoring the same seamless coverage. The results show that when thenon positive equilateral hexagon, obtained relatively good perceivedprobability and at the same time, produce the redundancy in covering areaof the smallest. Obviously, the experimental results have important guidingsignificance for the selection of the regional coverage of the deterministicnode deployment method.