%0 Journal Article
%A DU Chen-hui
%A MA Yue
%A SONG Mei
%A WANG Li
%T Improved Physical Layer Security with Cooperative Jamming Based on Stackelberg Game
%D 2014
%R 10.13190/j.jbupt.2014.05.003
%J Journal of Beijing University of Posts and Telecommunications
%P 11-15
%V 37
%N 5
%X <p>The secrecy rate of the source-destination link can be effectively improved with help of friendly jammers, but the jamming service is not free. Obviously, there exists a tradeoff between the friendly jammer and the source-destination pair. An optimal power allocation algorithm based on Stackelberg game was proposed. Based on the proposed two-level Stackelberg game model, the existence of unique globally optimal energy efficiency was proved, and the closed-form result of the optimal energy efficiency was derived. Simulations show that the proposed collaboration strategy is better than the average power allocation strategy in terms of energy efficiency. And multi-nodes collaboration could achieve better performance.</p>
%U https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2014.05.003