Hacking Ability Of Fusion Are Many Antenna Anti-interference Technology Research

On the one hand, the broadcast nature of wireless communications makes it difficultto shield transmitted signals from unintended recipients. As a result, the researchesabout the anti-jamming and anti-eavesdropping become more and more important. Onthe other hand, most of the modern wireless communications systems adopt themulti-antenna technology. In addition, the system processing capacity becomes power.Thus, we can improve the ability of anti-jamming and anti-eavesdropping by themulti-antenna technology.The main contents of this paper are to illustrate basic principle, realization methodand performance evaluation which are about the comprehensive ability ofanti-jamming and anti-eavesdropping by the multi-antenna beamforming technology.The basic idea is using the freedom provided by the multi-antennas to assign resourcesof anti-jamming and anti-eavesdropping. Multi-antennas beamforming technology caneffectively enhance the rate of wireless systems and the ability of resistanceinterference; meanwhile, without affecting the normal communication, it can usemultiple antenna resources to release interference for hostile party, in order to improvethe anti-eavesdropping ability.Based on the study of traditional MIMO anti-eavesdropping system model, theperformance assessment indicators of anti-eavesdropping and anti-jamming-"SecrecyRate" is given in this paper. Then, it extends the MIMO wiretap channel model on twolevels, and establishes the system model of which anti-jamming andanti-eavesdropping are needed. On the one hand, it can change the simplexeavesdropper eavesdroppers to a half-duplex mode. You can choose as be passivelyeavesdropping or be a hostile jamming. On the other hand, it can add a single work ofinterference when keeping simplex eavesdroppers exist at the same time. Then thesetwo models the anti-jamming, anti-eavesdropping-related research. In the end, wediscuss the two models of anti-jamming and anti-eavesdropping, respectively.In the MIMO wiretap channel model with a half-duplex eavesdropper, we selectthe Secrecy Rate as the utility function and establish the zero-sum game according to the choices of Alice and Eve. On static strategy game and dynamic strategy game twoangles, it analyzes and discusses the processes on both sides of game between Aliceand Bob, and it proves and solves the conditions of pure strategy equilibrium existsand the mixed strategy equilibrium. Then it gives the advices of simulation summariesand transmission which in several scenarios. For the wiretap Channel with a hostilejammer, we firstly proposed a beamforming (BF) scheme based on the InterferenceAlignment (IA) to jointly eliminate the jamming and artificial noise from thetransmitter. Then, a new power-allocation method is derived to maximize the allowableSINR at the intended receiver to achieve higher secrecy capacity. Finally, Monte Carlosimulations illustrate the performance of the proposed algorithm.