Stability Analysis Of Cyber-physical Systems With Multiple Transmission Channels Under DoS Attacks

Recently,network security issues have received great attentions,and network transmission efficiency is also a key consideration.Therefore,the stability of CPSs with multiple transmission channels under DoS attacks is studied in this paper.First of all,assumptions of DoS attack frequency and duration are proposed,under the assumptions,the stability of CPSs is guaranteed.Second,for two types of CPSs,two transmission mechanisms are proposed:a variable period transmission mechanism and a period-based event-triggered mechanism.Third,new conditions of stability of CPSs are obtained by adopting Lyapunov analysis method,linear matrix inequality and switching control methods.C ompared with the existing results,the two results obtained in this paper are better:convergence speed of CPSs is faster and the ability of anti-interference of CPSs is stronger;network resources are greatly saved.The relationship among the DoS frequency and duration parameters and the sampling period is also established.Finally,numerical examples are used to verify the validity of the results.