Privacy-Aware Wireless Power Transfer for Aerial Computation Offloading
via Colonel Blotto Game
Abstract
In this paper, a laser-powered aerial mobile edge computing (MEC)
architecture is proposed, where a high-altitude platform (HAP)
integrated with an MEC server transfers laser energy to charge aerial
user equipments (AUEs) for offloading their computation tasks to the
HAP. Particularly, we identify a new privacy vulnerability caused by the
transmission of wireless power transfer (WPT) signaling in the presence
of a malicious smart attacker (SA). To address this vulnerability, the
interaction between the HAP and the SA in their allocation of tile grids
as charging points to the AUEs in laser-enabled WPT is formulated as a
Colonel Blotto game (CBG), which models the competition of two players
for limited resources over multiple battlefields for a finite time
horizon. Moreover, the utility function that each player receives over a
battlefield is developed by identifying the tradeoff between privacy
protection level and energy consumption of each AUE. We further obtain
the mixed-strategy Nash equilibrium for the modified CBG with asymmetric
players. Simulation results are presented to show the effectiveness of
this game framework.