无人机自组网中基于信任的路由机制  

A Trust-based Routing Mechanism in UAV Ad Hoc Networks

作　　者：杨磊 龙伟 YANG Lei;LONG Wei(College of Information Engineering,Chengdu Aeronautic Polytechnic,610010,China;College of Computer Science&Engineering,University of Electronic Science and Technology of China,610031,China)

机构地区：[1]成都航空职业技术学院信息工程学院,成都610100 [2]电子科技大学计算机科学与工程学院,成都610031

出　　处：《电讯技术》2024年第7期1058-1064,共7页Telecommunication Engineering

摘　　要：传统无线路由方式不能很好地适应无人机自组网通信链路不稳定、节点能量受限等特点,为此,提出了一种新的基于信任的路由方案。首先,考虑了节点传输数据包所产生的能耗,对已有的分簇算法进行优化,选择剩余能量超过阈值的节点作为转发候选。其次,引入转发正确率、节点交互频度、探测成功率等信任因子对节点行为进行建模,由簇头节点汇聚所有的信任信息,并利用贝叶斯理论评估节点信任值。最后,在传统按需路由协议基础上,通过节点剩余能量、节点信任值及跳数来计算整体路由成本,并基于路由成本选择转发节点,确保了路由路径上的节点性能及行为可靠。所提方案有效提高了分组投递率及吞吐量,降低了端到端时延与转发能耗。The traditional wireless routing method cannot adapt well to the characteristics of unstable communication links and limited node energy in unmanned aerial vehicle(UAV)ad hoc networks.A new trust-based routing scheme is proposed.Firstly,considering the energy consumption of nodes transmitting data packets,the existing clustering algorithm is optimized,and the nodes with residual energy exceeding the threshold are selected as forwarding candidates.Secondly,the trust factors such as forwarding accuracy,node interaction frequency and detection success rate are introduced to model the node behavior.All the trust information is aggregated by the cluster head node,and the Bayesian theory is used to evaluate the node trust value.Finally,based on the traditional on-demand routing protocol,the overall routing cost is calculated by node residual energy,node trust value and hop count,and the forwarding node is selected according to the routing cost to ensure the reliability of node performance and behavior on the routing path.That the proposed scheme effectively improves the packet delivery rate and throughput,and reduces the end-to-end delay and forwarding energy consumption.

关 键 词：无人机自组网 路由机制 信任值 贝叶斯估计 

分 类 号：TN929.5[电子电信—通信与信息系统]