首页|Delay-optimal multi-satellite collaborative computation offloading supported by OISL in LEO satellite network
Delay-optimal multi-satellite collaborative computation offloading supported by OISL in LEO satellite network
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
万方数据
维普
By deploying the ubiquitous and reliable coverage of low Earth orbit(LEO)satellite networks using optical inter satel-lite link(OISL),computation offloading services can be provided for any users without proximal servers,while the resource limita-tion of both computation and storage on satellites is the impor-tant factor affecting the maximum task completion time.In this paper,we study a delay-optimal multi-satellite collaborative computation offloading scheme that allows satellites to actively migrate tasks among themselves by employing the high-speed OISLs,such that tasks with long queuing delay will be served as quickly as possible by utilizing idle computation resources in the neighborhood.To satisfy the delay requirement of delay-sensi-tive task,we first propose a deadline-aware task scheduling scheme in which a priority model is constructed to sort the order of tasks being served based on its deadline,and then a delay-optimal collaborative offloading scheme is derived such that the tasks which cannot be completed locally can be migrated to other idle satellites.Simulation results demonstrate the effective-ness of our multi-satellite collaborative computation offloading strategy in reducing task complement time and improving resource utilization of the LEO satellite network.
School of Integrated Circuits and Electronics,Beijing Institute of Technology,Beijing 100081,China
Yangtze Delta Region Academy,Beijing Institute of Technology,Jiaxing 314000,China
School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China
School of Information and Electronics, Beijing Institute of Technol-ogy, Beijing 100081, China
China Research and Development Academy of Machinery Equipment,Beijing 100089,China
展开 >
National Key Research and Development Program of ChinaNational Natural science Foundation of ChinaNational Natural science Foundation of ChinaBeijing Natural Science FoundationTechnological Innovation Program of Beijing Institute of Technology
万方数据
维普
