典型文献
Enabling Efficient Caching in High Mobility UAV Communications Network under Limited Backhaul
文献摘要：
Due to flexible deployment,unmanned aerial vehicle(UAV)mounted aerial access points are capable of expanding the coverage capabilities of ex-isting terrestrial base stations(TBSs).Different from TBSs,however,UAV access points(UAPs)are of high mobility in horizontal and vertical dimensions,which may deteriorate the coverage performance.Worsestill,the mobility of UAPs would as well increase the pres-sure of wireless backhaul.In this light,we investigate the performance of the cache-enabled UAV communi-cations network(CUCN)in terms of network spatial throughput(ST)by analyzing the line of sight(LoS)connections and non-line of sight(NLoS)connections.It is found that the network ST is exponentially de-creased with the square of UAP altitude.Furthermore,contrary to intuition,a large cache size may deteriorate the network ST when UAPs are over-deployed.The reason is that a large cache size increases the hit prob-ability,which may increase the activation of UAPs and consequently result in complicated interference.Aiming to maximize the network ST,we optimize the cache strategy under limited backhaul.Remarkably,the results show that network ST could be substantially improved by the optimized cache strategy and the per-formance degeneration brought by UAP high mobility could be even eliminated especially when the UAP al-titude is high.
文献关键词：
中图分类号：
作者姓名：
Yan Wu;Jiandong Li;Junyu Liu;Min Sheng;Chenxi Zhao
作者机构：
State Key Laboratory of Integrated Service Networks,Xidian University,Xi'an,Shaanxi 710071,China
文献出处：
引用格式：
[1]Yan Wu;Jiandong Li;Junyu Liu;Min Sheng;Chenxi Zhao-.Enabling Efficient Caching in High Mobility UAV Communications Network under Limited Backhaul)[J].中国通信（英文版）,2022(10):207-219
A类：
Backhaul,TBSs,UAPs,Worsestill,backhaul,CUCN,titude
B类：
Enabling,Efficient,Caching,High,Mobility,UAV,Communications,Network,under,Limited,Due,flexible,deployment,unmanned,aerial,vehicle,mounted,access,points,capable,expanding,coverage,capabilities,isting,terrestrial,base,stations,Different,from,however,high,mobility,horizontal,vertical,dimensions,which,may,deteriorate,performance,would,well,pres,sure,wireless,In,this,light,investigate,cache,enabled,communi,network,terms,spatial,throughput,ST,by,analyzing,line,sight,connections,NLoS,It,found,that,exponentially,creased,square,altitude,Furthermore,contrary,intuition,large,size,when,deployed,reason,increases,hit,prob,ability,activation,consequently,complicated,interference,Aiming,maximize,strategy,limited,Remarkably,results,show,could,be,substantially,improved,optimized,degeneration,brought,even,eliminated,especially
AB值：
0.504948
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
