Research On Dynamic Game Between User And Jammer In Wireless Communication Network

With the rapid development of wireless communication networks,it is particularly important for users to face different kinds of interference situations when using wireless communication to reduce or eliminate the influence of interference so as to achieve anti-interference transmission.In particular,the advent of smart jammers,which analyze the history of user transmissions,control their own behavior,and poses new threats to wireless networks.Researchers generally regard the confrontation between users and intelligent jammers as a game problem.How to apply different game ideas and methods to study the confrontation between communication networks and intelligent jammers has become a research hotspot.In this thesis,we consider different wireless communication scenarios from two aspects of complete game and incomplete information with dynamic game.It is generally assumed that the jammer can accurately measure the use^s transmission capacity in most of the existing researches,and less research paid attentions on incomplete information game.In this thesis,aiming at improving the above mentioned deficiencies,the following research works are performed.1.The research background and significance of the game theory in the communication network are introduced.The research status of different types of games in the communication network are analyzed and the advantages and disadvantages of different applications are compared,and Some related theoretical content of the game theory are introduced in detail.2.Based on the complete information dynarnic game,we study the anti-jamming power control problem between the users and the jammers.Considering the interference error of observer,a Stackelberg game(SG)model is established to analyze and solve the problem.The game equilibrium is derived,and the results of Stackelberg equilibrium(SE)and Nash equilibrium are compared.The simulation results verify the validity of the model.3.Based on the complete information dynamic game model,the bit error rate is taken as the game benefit function to determine the users7 strategy for different spread spectrum transmission modes and transmission powers.The interference strategies include different interference patterns and interference powers.The choice of strategies and the calculation of bit error rate are analyzed.Finally,the optimal bit error rate under specific parameters is simulated.4.A multi-channel wireless network anti-interference model based on the dynamic game of incomplete information is proposed.Assuming that the user and the intelligent jammer are transmitting on the same channel,and both parties take the power control as the strategy and model the two parties' confrontation relations as the incomplete information SG model to obtain their respective benefit functions.And the jammer observation error is considered in the benefit function.Then,the SE of the game model is solved,and its existence and uniqueness are proved.The simulation results verify the validity of this multi-channel incomplete information SG anti-interference model.