随机通信时延下传感器连通覆盖保持算法研究  

Research on Sensor Connectivity Coverage Preserving Algorithm Under Random Communication Delay

作　　者：郭彩萍[1] GUO Caiping(Department of Electronic Engineering,Taiyuan Institute of Technology,Taiyuan Shanxi 030008,China)

机构地区：[1]太原工业学院电子工程系,山西太原030008

出　　处：《传感技术学报》2023年第1期147-152,共6页Chinese Journal of Sensors and Actuators

基　　金：山西省高等学校教学改革创新项目(343)。

摘　　要：随机通信环境下传感网络节点信息传输随机性较强,导致传感器网络的连通覆盖难以保持。为此,提出基于模拟二维分析的传感器连通覆盖保持算法。标记传感器感知范围内任意一个节点形成的感知圆,以该圆作为传感器对该节点的初步覆盖范围,分别计算该节点、相邻节点端与传感器端间接收到能量的起始时间,构建不同时延量对节点实际覆盖度、覆盖面积以及覆盖概率的影响模型。获取单节点与整个区域的覆盖范围重叠部分,根据串联覆盖路径连通覆盖法约束传感器节点,实现连通及覆盖的保持。设置通信时延为5 m/s和20 m/s,设计仿真实验。实验结果验证了所提方法受到时延环境的影响较小,且耗时更短,适应能力强,连通覆盖保持的范围更广。该方法具有实际应用价值。In the random communication environment, the randomness of information transmission of sensor network nodes is strong, which makes it difficult to maintain the connectivity coverage of sensor networks. Therefore, a sensor connectivity coverage preserving algorithm based on simulated two-dimensional analysis is proposed. The sensing circle formed by any node within the sensing range of the sensor is marked and taken as the initial coverage of the sensor to the node, the starting time of the energy received between the node, the adjacent node end and the sensor end is calculated respectively, and the influence model of different time delay on the actual coverage, coverage area and coverage probability of the node is built. The coverage overlap between a single node and the whole area is obtained, and the sensor nodes are constrained according to the series coverage path connectivity coverage method to achieve connectivity and coverage maintenance. The communication delay is set as 5 m/s and 20 m/s, and the simulation experiment is designed. The experimental results show that the proposed method is less affected by the delay environment, less time-consuming, strong adaptability, and has a wider range of connected coverage. This method has practical application value.

关 键 词：传感器连通覆盖 串联覆盖路径 二维平面分析法 随机通信时延环境 二维平面分析 时延量 感知范围 

分 类 号：TP336[自动化与计算机技术—计算机系统结构]