Spectrum Sensing and Transmission Security Strategy of TV Spectrum Based on Game Theory
With Cognitive Radio (CR) technology, Seconday Users (SU) will face interference attacks when perceiving blank channels of the TV, and will also be subjected to a lot of interference and eavesdropping attacks during the data transmission phase. Aiming at the malicious attacks in both sensing and transmission stages, firstly, Energy Harvesting technology was used to build EH-CR system model, and utility function in time slot was proposed. Secondly, the SU optimal transmission channel and optimal slot allocation strategy are studied by using potential game and Stackelberg game to gradually optimize the sensing detection probability and transmission security rate. Thirdly, in order to further improve the safety performance, the iterative transmission power update formula is given at the end of each time slot to rationally utilize the SU residual energy. Finally, the superiority of the proposed method in detection rate and secrecy rate is verified by simulation.
Cognitive Radio (CR)Energy Harvesting (EH)game theoryjamming attackeavesdropping attack
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维普
