Research On Cooperative Jamming Game Of IWSN Physical Layer Security

Industrial Wireless Sensor Networks(IWSN)plays an important role in industrial monitoring,but IWSN is usually located in the environment with less human intervention,and the broadcast nature of radio propagation makes IWSN more vulnerable to eavesdropping attack than wired sensor networks.Physical layer security is becoming a promising secure communication paradigm.Using the inherent time-varying,reciprocity and diversity of wireless channel,its essence is to reduce the legitimate information obtained by eavesdroppers and maximize the secure communication rate between legitimate nodes,which can effectively protect the confidentiality of communication from eavesdropping attacks.In recent years,game theory has been applied to the research of IWSN physical layer security cooperation,which provides an effective method to solve the behavior interaction between nodes.Firstly,aiming at the physical layer security problem of eavesdropping and interference attack in IWSN cluster,a multi-layer Stackelberg game model is studied to prevent full duplex attack nodes.Based on the security rate,the optimal cooperative jamming node selection scheme is formulated;the multi-layer Stackelberg game is used to model the confrontation behavior between the legitimate node and the attacking node,as well as the internal negotiation behavior between the legitimate node(the sending node and the optimal cooperative jamming node),and the closed equilibrium solution of the Stackelberg game is analyzed;the hierarchical optimal response iterative algorithm is designed to solve the Stackelberg game Equilibrium.Secondly,a feedback Stackelberg game power control scheme is proposed to solve the physical layer security eavesdropping attack in IWSN.In order to improve the security rate in one hop,the destination node is encouraged to provide cooperative interference service by payment,and the interaction between the sender and the destination node is simulated by using Stackelberg game.In order to improve the security rate of multi hop backbone network,a feedback cost function is introduced to reduce the fluctuation of inter hop security rate.Finally,a Stackelberg game model based on Cooperative jamming and energy storage(cjes)technology is proposed to solve the problem of anti eavesdropping attack in the downlink between sink node and cluster head node in IWSN with wireless energy carrying communication.At the same time,considering the communication security and energy supplement of cluster head node,a full duplex cluster head node with two power separators is designed.The received base station signal is used in three parts: information decoding,cooperative interference and energy storage.The anti eavesdropping scheme based on Cooperative interference and energy storage technology is studied.The Stackelberg game is used to model the relationship between sink node and cluster head node in the anti eavesdropping scheme,and the closed form equilibrium solution of the game is solved.Matlab2018 software is used for simulation,and the results show that: Based on the best cooperative interference node selection scheme,multi-layer Stackelberg game model has better interference effect on the attacking nodes,which can effectively improve the cooperation enthusiasm of cooperative interference nodes;fspc scheme with feedback cost function can more effectively ensure the transmission security of data in IWSN multi hop backbone network,and save energy consumption;The Stackelberg game model based on CJES anti eavesdropping scheme can effectively improve the physical layer security of IWSN gateway downlink,and significantly increase the energy collected by cluster head nodes.