Optimal Receive Beamforming for Over-the-Air Computation

doi:10.1109/SPAWC51858.2021.9593251

	Optimal Receive Beamforming for Over-the-Air Computation
	Wenzhi Fang; Yinan Zou; Hongbin Zhu; Yuanming Shi; Yong Zhou
	2021
会议录名称	IEEE WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS, SPAWC
ISSN	1948-3244
卷号	2021-September
页码	61-65
发表状态	已发表
DOI	10.1109/SPAWC51858.2021.9593251
摘要	In this paper, we consider fast wireless data aggregation via over-the-air computation (AirComp) in Internet of Things (IoT) networks, where an access point (AP) with multiple antennas aim to recover the arithmetic mean of sensory data from multiple IoT devices. To minimize the estimation distortion, we formulate a mean-squared-error (MSE) minimization problem that involves the joint optimization of the transmit scalars at the IoT devices as well as the denoising factor and the receive beamforming vector at the AP. To this end, we derive the transmit scalars and the denoising factor in closed-form, resulting in a non-convex quadratic constrained quadratic programming (QCQP) problem concerning the receive beamforming vector. Different from the existing studies that only obtain sub-optimal beamformers, we propose a branch and bound (BnB) algorithm to design the globally optimal receive beamformer. Extensive simulations demonstrate the superior performance of the proposed algorithm in terms of MSE. Moreover, the proposed BnB algorithm can serve as a benchmark to evaluate the performance of the existing sub-optimal algorithms. © 2021 IEEE.
关键词	Beamforming Benchmarking Branch and bound method Mean square error Quadratic programming Access points Branch-and-bound algorithms Data aggregation De-noising Mean squared error Multiple antenna Over the airs Performance Receive beamforming Wireless data
会议名称	22nd IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2021
会议地点	Lucca, Italy
会议日期	September 27, 2021 - September 30, 2021
URL	查看原文
收录类别	EI ; CPCI ; CPCI-S
语种	英语
出版者	Institute of Electrical and Electronics Engineers Inc.
EI入藏号	20220311473756
EI主题词	Internet of things
EI分类号	711.2 Electromagnetic Waves in Relation to Various Structures ; 722.3 Data Communication, Equipment and Techniques ; 723 Computer Software, Data Handling and Applications ; 921.5 Optimization Techniques ; 922.2 Mathematical Statistics
原始文献类型	Conference article (CA)
来源库	IEEE
文献类型	会议论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/195202
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_硕士生
作者单位	School of Information Science and Technology, ShanghaiTech University, Shanghai, China
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	Wenzhi Fang,Yinan Zou,Hongbin Zhu,et al. Optimal Receive Beamforming for Over-the-Air Computation[C]:Institute of Electrical and Electronics Engineers Inc.,2021:61-65.