Title
Resource Allocation and Trajectory Design for MISO UAV-Assisted MEC Networks
Abstract
Mobile Edge Computing (MEC) is a promising technology in the next generation network, which provides computing services for user equipments (UEs) to reduce the task delay and prolong the usage time of UEs. To address the deficiency of poor channel quality caused by multipath and blockages in traditional MEC networks, a multiple input single output (MISO) UAV-assisted MEC network is studied. A system energy consumption minimization problem is formulated by jointly optimizing the the UAV’s beamforming vectors, the UAV’s central processing unit (CPU) frequency, the UAV’s trajectory, the UEs’ transmission power and the UEs’ CPU frequency subject to the constraints on the task, the UAV’s trajectory, and the UEs’ computation tasks. A three-stage iterative algorithm is proposed to solve the challenging non-convex problem. The closed-form expressions for the optimal UAV CPU frequency and the transmission power of UEs are derived. Simulation results show that the proposed algorithm is superior to the benchmark schemes in terms of energy consumption, and the convergence performance is guaranteed.
Year
DOI
Venue
2022
10.1109/TVT.2022.3140833
IEEE Transactions on Vehicular Technology
Keywords
DocType
Volume
Mobile edge computing (MEC),unmanned aerial vehicle (UAV),multiple input single output (MISO)
Journal
71
Issue
ISSN
Citations 
5
0018-9545
1
PageRank 
References 
Authors
0.37
30
5
Name
Order
Citations
PageRank
Boyang Liu110.37
Yiyao Wan240.75
Fuhui Zhou349149.40
Qi-hui Wu41383102.61
Rose Qingyang Hu51702135.35