Joint resource trading and computation offloading in blockchain enhanced D2D-assisted mobile edge computing

D2D-assisted mobile edge computing has attracted much attention due to its great potential to reduce the pressure on edge servers and improve the utilization of mobile devices. However, users are usually reluctant to share resources with neighbor devices, considering the limitations on resources and energy, and the concerns about security and privacy. In this paper, we firstly propose a blockchain-based resource-sharing system to solve the trust issues between unfamiliar participants. Under this system, we jointly consider resource trading and computation offloading to reduce energy consumption on the premise of maximizing the utilities of both providers and requesters. Resource trading is modeled as Stackelberg Game, and computation offloading is formalized as a mixed optimization problem. Finally, we propose the corresponding algorithms to efficiently get the optimal trading and offloading strategy. The simulation results show the effectiveness of incentivizing more participants.