Joint control of transmission power and channel switching against adaptive jamming

In this work, we consider the interaction between an adaptive jammer and a user, and we study the joint control of transmission power and channel switching for the user in the presence of jamming interference. Instead of adopting a game-theoretical approach to studying the interaction, which typically requires full knowledge of the jammer about the user and vice versa, we adopt an online learning perspective to model the reasoning of the attacker as well as the defender. We note that the two aspects of the control are typically coupled, and moreover, the tractability of analysis may be limited if the jammer is capable of learning the user´s control strategy, thus attacking adaptively. Interestingly, we show that the power control aspect can be in fact decoupled from the channel switching decisions as a result of this interaction, and we develop the explicit form of the optimal control for certain scenarios.