摘要
考虑到一致性时间同步方法只能同步通信范围内的节点,无法实现无线传感器网络区域间敏感信息的融合,且其具有传输数据量大、同步收敛速度慢的不足,提出了一种基于GPA算法的一致性时间同步方法。分析了网络拓扑结构和区域间时间敏感信息的交互对时间同步的影响,通过GPA算法对网络结构进行分簇,在簇内采用一致性时间同步算法,簇间采用双向信息交换机制进行时间同步,使得网络中各簇间的敏感信息能够交互融合,提高了现有一致性时间同步算法的性能。通过MATLAB仿真进行所提方法的数值仿真试验,验证了所提方法的有效性。
Considering that the consensus time synchronization method can only synchronize nodes within the communication range,it cannot realize the fusion of sensitive information between wireless sensor network areas,and it has the disadvantages of large amount of transmitted data and slow synchronization convergence.A consensus time synchronization method based on GPA algorithm is proposed.The influence of the network topology structure and the interaction of time⁃sensitive information between regions on time synchronization is analyzed,the network structure is clustered by using GPA algorithm,the consensus time synchronization algorithm is used within the cluster,and the two⁃way information exchange mechanism is used for time synchronization between clusters.The sensitive information among the clusters in this network can be interactively fused,and the performance of the existing consensus time synchronization algo⁃rithm is improved.The numerical simulation test of the proposed method is carried out through MATLAB simulation,and the effective⁃ness of the proposed method is verified.
作者
周华勇
陈珍萍
ZHOU Huayong;CHEN Zhenping(School of Electronic and Information Engineering,Suzhou University of Science and Technology,Suzhou Jiangsu 215009,China)
出处
《传感技术学报》
CAS
CSCD
北大核心
2023年第8期1296-1302,共7页
Chinese Journal of Sensors and Actuators
基金
国家自然科学基金项目(51874205)
江苏高校“青蓝工程”项目。
