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Given the importance of line-of-sight in mmWave communications, a strategicadversary can harm a transmission by obstructing the receiver, which in turncan react by trying to move around this hurdle. To expand on this point, westudy one such scenario from the perspective of game theory, considering amobile mmWave receiver and an adversary interacting strategically as players ina zero-sum game, where they want to maximize, or respectively minimize, thespectral efficiency of the communication. To do so, the adversary attempts atscreening the receiver's line of sight as an obstacle, while the receiver canmove around so as to avoid the blockage. We consider preset distances and thechoices available to the players are to change their angular coordinates to goaround each other. This is framed as a static game of complete information, forwhich we numerically find the Nash equilibrium in mixed strategies, drawingsome interesting conclusions such as connecting it with the beamforming patternof the transmitter.

Blockage-Peeking Game of Mobile Strategic Nodes in Millimeter Wave Communications