共轭孪生波通信系统中休眠节点软故障识别

Soft Fault Identification of Dormant Node in Conjugated Turbine Wave Communication System

通信系统休眠节点位置信息丢失,导致识别正确率降低,提出共轭孪生波通信系统休眠节点软故障识别方法。引入非正交多址接入技术,建立共轭孪生波通信系统,允许多个用户共享相同子载波;将共轭孪生波通信系统转换为通信图,以报文丢失为例构建一个节点定位模型,实现系统休眠节点的准确定位;采用贝叶斯理论估算休眠节点正常率,实现休眠节点软故障有效识别。仿真结果表明,可以大幅改善共轭孪生波通信系统的整体性能,对休眠节点故障识别结果正确率高,具备极强的优越性。

The position information loss of sleeping node in communication system will lead to the decrease of fault recognition accuracy.Therefore,a method to recognize soft fault of sleeping nodes in PCTW communication system was proposed.Firstly,the non-orthogonal multiple access technology was introduced to establish the PCTW communication system,which allowed multiple users to share the same subcarrier.Secondly,PCTW communication system was transformed into a communication diagram.Taking the message loss as an example,a node positioning model was constructed to realize the accurate positioning for the sleeping node.Finally,the Bayesian theory was used to estimate the normal rate of the sleeping node and thus to realize the effective recognition for soft failure of the sleeping node.Simulation results show that the proposed method can greatly improve the overall performance of PCTW communication system.Meanwhile,it has high accuracy and strong superiority for the fault recognition of sleeping node.