Latency Minimization for UAV-Assisted MEC Networks With Blockchain

【Author】 Wang, Chen; Zhai, Daosen; Zhang, Ruonan; Li, Huan; Richard Yu, Fei

【Source】IEEE TRANSACTIONS ON COMMUNICATIONS

【影响因子】6.166

【Abstract】Integrating the unmanned aerial vehicles (UAVs) assisted mobile edge computing (MEC) network with the blockchain technology emerges its superiority in the network utilization, differentiated service, and security, which has been regarded as a promising technique for time-critical applications. In this paper, we propose a UAV-assisted MEC network architecture and a comprehensive data processing flow, where the UAVs cooperate with the base station in computation as edge servers and act as blockchain nodes. We formulate an optimization problem that jointly considers UAVs' position, data offloading, and resource allocation for minimizing the total time consumption of data processing. To address this problem, we decouple it as three tractable subproblems and propose a Block Coordinate Descent (BCD)-based iterative algorithm. In addition, we analyze the task migration and resource allocation problem in computation, and obtain analytical solutions by the Karush-Kuhn-Tucker (KKT) conditions. The simulated results indicate that the proposed algorithm leads to substantial performance gains.

【Keywords】Blockchains; Autonomous aerial vehicles; Servers; Task analysis; Resource management; Data processing; Network architecture; MEC; UAV; blockchain; wireless networks

【发表时间】2024 NOV

【收录时间】2024-11-29

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