Secure multicast communications with private jammers

Cumanan, Kanapathippillai and Ding, Zhiguo and Xu, Mai and Poor, H. Vincent (2016) Secure multicast communications with private jammers. In: 2016 IEEE 17th International Workshop on Processing Advances in Wireless Communications (SPAWC). IEEE. ISBN 9781509017508

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This paper investigates secrecy rate optimization for a multicasting network, in which a transmitter broadcasts the same information to multiple legitimate users in the presence of multiple eavesdroppers. In order to improve the achievable secrecy rates, private jammers are employed to generate interference to confuse the eavesdroppers. These private jammers charge the legitimate transmitter for their jamming services based on the amount of interference received at the eavesdroppers. Therefore, this secrecy rate maximization problem is formulated as a Stackelberg game, in which the private jammers and the transmitter are the leaders and the follower of the game, respectively. A fixed interference price scenario is considered first, in which a closed-form solution is derived for the optimal amount of interference generated by the jammers to maximize the revenue of the legitimate transmitter. Based on this solution, the Stackelberg equilibrium of the proposed game, at which both legitimate transmitter and the private jammers achieve their maximum revenues, is then derived. Simulation results are also provided to validate these theoretical derivations.

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22 May 2017 12:02
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18 Oct 2023 00:17