UAV Aided Over-the-Air Computation

doi:10.1109/TWC.2021.3134327

	UAV Aided Over-the-Air Computation
	Min Fu1,2,3 ; Yong Zhou1 ; Yuanming Shi1 ; Wei Chen 4; Rui Zhang 5
	2022-07-01
发表期刊	IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
ISSN	1558-2248
卷号	21 期号:7
发表状态	已发表
DOI	10.1109/TWC.2021.3134327
摘要	Different from the existing works that focus on transceiver design of over-the-air computation (AirComp) over static networks, we in this paper consider an unmanned aerial vehicle (UAV) aided AirComp system, where the UAV as a flying base station aggregates data from mobile sensors. The trajectory design of the UAV provides an additional degree of freedom to improve the performance of AirComp. We aim to minimize the time-averaged mean-squared error (MSE) of AirComp by jointly optimizing the UAV trajectory, receive normalizing factors, and sensors’ transmit power. To this end, we first propose a novel and equivalent problem transformation by introducing intermediate variables. This reformulation leads to a convex subproblem when fixing any other two blocks of variables, thereby enabling efficient algorithm design based on the principle of block coordinate descent and alternating direction method of multipliers (ADMM) techniques. In particular, we derive the optimal closed-form solutions for normalizing factors and intermediate variables optimization subproblems. We also recast the convex trajectory design subproblem into an ADMM form and obtain the closed-form expressions for each variable updating. Simulation results show that the proposed algorithm achieves a smaller time-averaged MSE while reducing the simulation time by orders of magnitude compared to state-of-the-art algorithms.
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收录类别	SCI ; EI ; SCIE
来源库	IEEE
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/183474
专题	信息科学与技术学院信息科学与技术学院_PI研究组_石远明组信息科学与技术学院_PI研究组_周勇组信息科学与技术学院_博士生
作者单位	1.School of Information Science and Technology, ShanghaiTech University, Shanghai, China 2.Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China 3.University of Chinese Academy of Sciences, Beijing, China 4.Department of Electronic Engineering and the Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing, China 5.Department of Electrical and Computer Engineering, National University of Singapore, Singapore
第一作者单位	信息科学与技术学院
第一作者的第一单位	信息科学与技术学院
推荐引用方式 GB/T 7714	Min Fu,Yong Zhou,Yuanming Shi,et al. UAV Aided Over-the-Air Computation[J]. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS,2022,21(7).
APA	Min Fu,Yong Zhou,Yuanming Shi,Wei Chen,&Rui Zhang.(2022).UAV Aided Over-the-Air Computation.IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS,21(7).
MLA	Min Fu,et al."UAV Aided Over-the-Air Computation".IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 21.7(2022).