广东工业大学学报2024，Vol.41Issue(2)：116-121,6.DOI:10.12052/gdutxb.220181
基于无线供电空中计算系统的收发器优化设计
An Optimized Transceiver Design for Wireless Powered Over-the-air Computation Systems
摘要
Abstract
A wireless powered over-the-air computation(AirComp)system is studied,where one separately-located energy transmitter(ET)is deployed to charge multiple low-power sensors simultaneously via energy beamforming,and these sensors rely on the harvested energy for sequential data sensing and functional computation along with the access point(AP).A harvest-then-sense-and-transmit protocol is considered.Under this system setup,an energy-efficient AirComp design is pursued to minimize the transmit energy of the ET,subject to the sensor energy harvesting constraints and the computational mean squared error(MSE)constraints.The energy beamforming vectors of the ET,the receive beamforming vectors of the AP,and the transmit coefficients at the sensors are jointly optimized.Due to the complicated variable coupling,the resultant energy minimization problem is non-convex.As such,an alternating optimization method is presented to obtain a near-optimal design solution in an iteration manner.Numerical results are provided to show the fast convergence performance and the merit of the proposed design solution.关键词
空中计算/能量收集/计算均方误差/交替优化Key words
over-the-air computation(AirComp)/energy harvesting/computational MSE/alternating optimization分类
管理科学引用本文复制引用
洪泽彬,王丰..基于无线供电空中计算系统的收发器优化设计[J].广东工业大学学报,2024,41(2):116-121,6.基金项目
国家自然科学基金资助项目(61901124) （61901124）
广东省自然科学基金资助项目(2021A1515012305) （2021A1515012305）
广州市科技计划项目(202102020856) （202102020856）
