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Energy Harvesting in Secret Key Generation Systems under Jamming Attacks

Belmega, EV and Chorti, A (2017) Energy Harvesting in Secret Key Generation Systems under Jamming Attacks. In: IEEE International Conference on Communications ICC 2017, 2017-05-21 - 2017-05-25, Paris.

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Abstract

Secret key generation (SKG) from shared randomness at two remote locations has been shown to be vulnerable to denial of service attacks in the form of jamming. Typically, such attacks are alleviated with frequency hopping/spreading techniques that rely on expansion of the system bandwidth. In the present study, energy harvesting (EH) is exploited as a novel counter-jamming approach that alleviates the need for extra bandwidth resources. Assuming the legitimate users have EH capabilities, the idea is that part of the jamming signal can potentially be harvested and converted into useful communication power. In this framework, the competitive interaction between a pair of legitimate users and a jammer is formulated as a zero-sum game. A critical transmission power for the legitimate users is identified which allows to completely characterize the unique NE of the game in closed form. Remarkably, this threshold also provides the option to effectively neutralize the jammer, i.e., prevent the jammer from carrying out the attack altogether. Through numerical evaluations, EH is shown to be a counter-jamming approach that can offer substantial gains in terms of relative SKG rates.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Published proceedings: _not provided_
Uncontrolled Keywords: Energy harvesting, secret key generation, jamming attacks, zero-sum games, Nash equilibrium
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science and Health > Computer Science and Electronic Engineering, School of
Depositing User: Arsenia Chorti
Date Deposited: 10 May 2017 14:19
Last Modified: 25 Aug 2017 16:15
URI: http://repository.essex.ac.uk/id/eprint/19557

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