作者: Andrey Garnaev , Wade Trappe
关键词: Game theory 、 Computer science 、 Dilemma 、 Cryptography 、 Stochastic game 、 Jamming 、 Eavesdropping 、 Orthogonal frequency-division multiplexing 、 Transmitter power output 、 Strategy 、 Computer security
摘要: We consider the game where Alice wants to communicate with Bob secretely, while Eve hinder this objective by either eavesdropping or jamming, though she cannot employ both and jamming simultaneously. is employing a multi-channel communication scheme, such as OFDM, can control transmit power allocation of her signal among channels. If chooses jam, amongst channels, but in case eavesdrop. In paper we examine three different patterns for Alice's (and Eve's) behavior: (a) assumes employs pure strategy determines optimal mixed under assumption; (b) assuming fixed probability which will jam/eavesdrop, Alice/Eve's equilibrium strategies be determined, then that maximizes payoff; (c) between two modes (either jam eavesdrop) well allocations simultaneous selection allocation. Using game-theoretic formulation, are found each model conditions players apply produced.