TY - JOUR
T1 - Jammaing game for secure orthogonal frequency division multiplexing access systems
AU - Gabalou, Vahed Fadakar
AU - Maham, Behrouz
AU - Jahandideh, Mojtaba
N1 - Publisher Copyright:
© The Institution of Engineering and Technology 2018.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018/7/31
Y1 - 2018/7/31
N2 - In a communication system, security and reliability have an important impact on the quality of services. In this study, the authors investigate power and subcarrier allocation of a transmitter over the downlink of an orthogonal frequency division multiplexing access system with security considerations among users in the presence of a jammer. This study considers the interaction between the jammer and the transmitter as a zero-sum game where the objective function is the transmitter's secrecy sum-rate. To allocate the available resources, they solve the optimisation problem of each player to characterise its optimal strategies. Considering the intractability of the closed form Nash equilibrium for general power regime, they study a matrix game for obtaining maxmin and minmax solutions and demonstrate the validity of inequality maxmin ≥ minmax. Moreover, they show the existence of pure Nash equilibrium point for low total power regimes of the transmitter and the jammer and attain an expression for each regime. Finally, they examine the jamming power effect on the secrecy sum-rate and acquire lower and upper bounds of this rate using simulations.
AB - In a communication system, security and reliability have an important impact on the quality of services. In this study, the authors investigate power and subcarrier allocation of a transmitter over the downlink of an orthogonal frequency division multiplexing access system with security considerations among users in the presence of a jammer. This study considers the interaction between the jammer and the transmitter as a zero-sum game where the objective function is the transmitter's secrecy sum-rate. To allocate the available resources, they solve the optimisation problem of each player to characterise its optimal strategies. Considering the intractability of the closed form Nash equilibrium for general power regime, they study a matrix game for obtaining maxmin and minmax solutions and demonstrate the validity of inequality maxmin ≥ minmax. Moreover, they show the existence of pure Nash equilibrium point for low total power regimes of the transmitter and the jammer and attain an expression for each regime. Finally, they examine the jamming power effect on the secrecy sum-rate and acquire lower and upper bounds of this rate using simulations.
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U2 - 10.1049/iet-com.2017.0426
DO - 10.1049/iet-com.2017.0426
M3 - Article
AN - SCOPUS:85049840148
VL - 12
SP - 1498
EP - 1508
JO - IET Communications
JF - IET Communications
SN - 1751-8628
IS - 12
ER -