Cell-Free Massive MIMO中没有小区,所有服务天线一致地为所有用户终端服务。 Cell-Free Massive MIMO目前只是一个新概念;它是MIMO与协作多点联合处理(Comp)的新实用且可扩展的版本。在某种程度上是基于良好传播和信道化化特性Massive MIMO技术的新应用。
由于mMIMO技术,随着天线数量的增加,每一个UE的数据速率也会增加,导致一次FL迭代的执行时间减少了40%,如图2所示。 图2.性能对比(K=8(users per group),N=3 groups,D=0.5 km) 图3.性能对比(M=80(antennas),N=3 groups,D=0.5 km) 图中还表明CFmMIMO显著优于colocated mMIMO,在M=80,K=10的参数下一次...
本发明提出在CellfreeMassiveMIMO下的正交多址与非正交多址的结合方法,将所有用户分成L簇,每簇内用户数为1或2,每簇内的用户使用相同的导频,不同簇用户使用相互正交的导频,则正交导频的个数为L;将AP随机分为两部分,一部分为OMA用户提供服务,另一部分为NOMA用户提供服务;下行链路的数据传输依赖于共轭波束赋形,...
摘要:本发明提供一种基于模式选择和功率分配的Cell‑FreeMassiveMIMO系统面向D2D通信的资源调度方法。步骤1:组装系统;步骤2:构建满足CFUE用户和D2D用户最小速率要求和功率要求情况下最大化整个系统传输速率的优化目标;步骤3:根据D2D用户的工作模式将其分为工作在本地路由模式的优化P1和工作在D2D直接模式下的优化P2以...
cell-freemassivemimouniformlygreatserviceforeveryone 系统标签: mimomassiveuniformlyservicegreatuplink arXiv:1505.02617v1[cs.IT]11May2015Cell-FreeMassiveMIMO:UniformlyGreatServiceForEveryoneHienQuocNgo∗,AlexeiAshikhmin†,HongYang†,ErikG.Larsson∗,andThomasL.Marzetta†∗DepartmentofElectricalEngineering...
Cell-free (CF) massive multiple-input multiple-output (mMIMO) is a promising technology for enhancing the spectrum efficiency in future wireless systems. It leverages distributed access points (APs) to jointly serve multiple users over the same time-frequency resource. In this paper, we study the...
We further compare the performance of the Cell-Free Massive MIMO system to that of a conventional small-cell network and show that the throughput of the Cell-Free system is much more concentrated around its median compared to that of the smallcell system. The Cell-Free Massive MIMO system ...
Recently, the so-called cell-free Massive MIMO architecture has been introduced, wherein a very large number of distributed access points simultaneously and jointly serve a much smaller number of mobile stations. This paper introduces a user- centric virtual cell approach to cell-free massive MIMO...
基于成功传输概率的Cell-FreeMassiveMIMO网络分簇计算方法专利信息由爱企查专利频道提供,基于成功传输概率的Cell-FreeMassiveMIMO网络分簇计算方法说明:基于成功传输概率的Cell‑Free Massive...专利查询请上爱企查
freemassiveMIMO(multiple-inputmultiple-output)systeminvolvesalargenumberofaccesspointsservingasmallernumberofmobileusers(MUs)overidenticaltime/frequencyresource.Byprovid-inglargenumberofserviceantennasclosertotheMUs,thecell-freemassiveMIMOcanoffergreatspectralefficiency,bettermacro-diversityandminimalpathloss.Despite...