典型文献
Energy efficiency maximization for buffer-aided multi-UAV relaying communications
文献摘要：
This paper studies a multiple unmanned aerial vehicle (UAV) relaying communication system, where multiple UAV re-lays assist the blocked communication between a group of ground users (GUs) and a base station (BS). Since the UAVs only have limited-energy in practice, our design aims to maximize the energy efficiency (EE) through jointly designing the communica-tion scheduling, the transmit power allocation, as well as UAV trajectory under the buffer constraint over a given flight period. Actually, the formulated fractional optimization problem is diffi-cult to be solved in general because of non-convexity. To re-solve this difficulty, an efficient iterative algorithm is proposed based on the block coordinate descent (BCD) and successive convex approximation (SCA) techniques, as well as the Dinkel-bach 's algorithm. Specifically, the optimization variables of the formulated problem are divided into three blocks and we alter-nately optimize each block of the variables over iteration. Numeri-cal results verify the convergence of the proposed iterative al-gorithm and show that the proposed designs achieve significant EE gain, which outperform other benchmark schemes.
文献关键词：
中图分类号：
作者姓名：
CAO Dongju;YANG Wendong;CHEN Hui;WU Yang;TANG Xuanxuan
作者机构：
College of Communications Engineering,Army Engineering University of PLA,Nanjing 210007,China;Radar Non-commissioned Officer School,Air Force Early Warning Academy,Wuhan 430019,China
文献出处：
引用格式：
[1]CAO Dongju;YANG Wendong;CHEN Hui;WU Yang;TANG Xuanxuan-.Energy efficiency maximization for buffer-aided multi-UAV relaying communications)[J].系统工程与电子技术（英文版）,2022(02):312-321
A类：
Dinkel,Numeri
B类：
Energy,efficiency,maximization,buffer,aided,relaying,communications,This,paper,studies,multiple,unmanned,aerial,vehicle,system,where,lays,assist,blocked,between,group,ground,users,GUs,station,BS,Since,UAVs,only,have,limited,energy,practice,our,aims,maximize,EE,through,jointly,designing,scheduling,transmit,power,allocation,well,trajectory,under,constraint,over,given,flight,period,Actually,formulated,fractional,optimization,problem,solved,general,because,convexity,To,this,difficulty,efficient,iterative,algorithm,proposed,coordinate,descent,BCD,successive,approximation,SCA,techniques,bach,Specifically,variables,are,divided,into,three,blocks,alter,nately,optimize,each,iteration,results,verify,convergence,show,that,designs,achieve,significant,gain,which,outperform,other,benchmark,schemes
AB值：
0.623253
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