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Secure multicast communications with private jammers

Author(s): Cumanan, Kanapathippillai; Ding, Zhiguo; Xu, Mai; Poor, H Vincent

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Abstract: 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.
Publication Date: Jul-2016
Citation: Cumanan, Kanapathippillai, Ding, Zhiguo, Xu, Mai, Poor, H Vincent. (2016). Secure multicast communications with private jammers. 2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 10.1109/spawc.2016.7536824
DOI: doi:10.1109/spawc.2016.7536824
Type of Material: Journal Article
Journal/Proceeding Title: 2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
Version: Author's manuscript

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