重庆邮电大学学报（自然科学版）2025，Vol.37Issue(5)：647-657,11.DOI:10.3979/j.issn.1673-825X.202406210152
无线供能移动边缘计算的节能计算卸载研究
Energy-efficient computation offloading in wireless-powered mobile edge computing
唐宏 1戴佳妤 1赵文卓 1冯琛1
作者信息
- 1. 重庆邮电大学通信与信息工程学院,重庆 400065||重庆邮电大学移动通信技术重庆市重点实验室,重庆 400065
- 折叠
摘要
Abstract
The integration of mobile edge computing(MEC)and wireless power transfer(WPT)can effectively alleviate the constraints of limited computing resources and battery capacity in wireless devices.To address the dynamic energy-effi-cient offloading problem in wireless-powered MEC systems under a nonlinear energy harvesting model,this paper proposes an energy consumption optimization algorithm based on Lyapunov optimization theory.By jointly optimizing the server's computing frequency,the energy station's transmit power,task offloading time,device transmit power,and local compu-ting frequency,the algorithm minimizes the system's long-term average energy consumption while ensuring system stability.The stochastic optimization problem is transformed into a time-slot-based deterministic subproblem using Lyapunov optimiza-tion and solved through the Lagrange multiplier method and an improved whale optimization algorithm.Simulation results show that,compared with benchmark schemes,the proposed offloading strategy significantly reduces system energy con-sumption while maintaining long-term task queue stability.关键词
移动边缘计算/无线能量传输/李雅普诺夫优化/计算卸载Key words
mobile edge computing/wireless power transfer/Lyapunov optimization/computation offloading分类
电子信息工程引用本文复制引用
唐宏,戴佳妤,赵文卓,冯琛..无线供能移动边缘计算的节能计算卸载研究[J].重庆邮电大学学报（自然科学版）,2025,37(5):647-657,11.
