In recent years, various maritime applica-tions such as unmanned surface vehicles, marine en-vironment monitoring, target tracking, and emergency response have developed rapidly in maritime commu-nication networks (MCNs), and these applications are often accompanied by complex computation tasks and low latency requirements. However, due to the lim-ited resources of the vessels, it is critical to design an efficient mobile edge computing (MEC) enabled net-work for maritime computation. Inspired by this moti-vation, energy harvesting space-air-sea integrated net-works (EH-SASINs) for maritime computation tasks offloading are proposed in this paper. We first make the optimal deployment of tethered aerostats (TAs) with the K-means method. In addition, we study the issue of computation task offloading for vessels, fo-cusing on minimizing the process delay of computa-tion task based on the proposed architecture. Finally, because of the NP-hard properties of the optimization problem, we solve it in two stages and propose an im-proved water-filling algorithm based on queuing the-ory. Simulation results show that the proposed EH-SASINs and algorithms outperform the existing sce-narios and can reduce about 50％of the latency com-pared with local computation.

Zhijian Lin;Xiaopei Chen;Pingping Chen

School of Advanced Manufacturing,Fuzhou University,Fujian 362251,China;College of Physics and Information Engineering,Fuzhou University,Fujian 350108,China

中国通信（英文版）

[1]Zhijian Lin;Xiaopei Chen;Pingping Chen-.Energy Harvesting Space-Air-Sea Integrated Networks for MEC-Enabled Maritime Internet of Things)[J].中国通信（英文版）,2022(09):47-57

MCNs,SASINs,aerostats,cusing

Energy,Harvesting,Space,Air,Sea,Integrated,Networks,MEC,Enabled,Maritime,Internet,Things,recent,years,various,maritime,such,unmanned,surface,vehicles,marine,vironment,monitoring,target,tracking,emergency,response,have,developed,rapidly,commu,nication,networks,these,applications,often,accompanied,by,complex,computation,tasks,low,latency,requirements,However,due,lim,ited,resources,vessels,critical,design,efficient,mobile,edge,computing,enabled,Inspired,this,moti,vation,energy,harvesting,space,air,sea,integrated,EH,offloading,proposed,paper,We,first,make,optimal,deployment,tethered,TAs,means,method,addition,study,issue,minimizing,process,delay,architecture,Finally,because,NP,hard,properties,optimization,problem,solve,stages,proved,water,filling,queuing,ory,Simulation,results,show,that,algorithms,outperform,existing,sce,narios,can,reduce,about,pared,local

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