基于随机几何的异构网络传输性能分析.pdfVIP

长，信息通信

DOI:10.20153/j.issn.2096-9759.2024.08.014

基于随机几何的异构网络传输性能分析

张书琦，马红玉

辽宁工业大学，辽宁锦州121000

AnalysisofTransmissionPerformanceinHeterogeneousNetworksBased

onStochasticGeometry

ZHANGShuqi,MAHongyu

SchoolofElectronicandInfomationEngineering,LiaoningUniversityofTechnology,Liaoning121000,China

摘要：针对单层蜂窝网络难以同时实现Abstract:Toaddressthechallengeofachievingbothwidecoverageandhigh-qualitycommuni-

大范围覆盖和高质量通信的问题，提出cationinasingle-ticrcllularnctwork,ahybridheterogencouscellularnetworkmodelcombi-

一种传统微波与毫米波混合异构蜂窝网ningtraditionalmicrowaveandmillimeterwavetechnologiesisproposed.Basedonstochastic

络模型。基于随机几何理论，构建毫米gcometrytheory,aspatialnodedistributionmodelisconstructedformillimeterwavehybrid

波混合异构场景下的空间节点分布模heterogeneousscenarios,wheremacrobasestationsfollowaPoissonpointprocessdistribution,

型，宏基站服从泊松点过程分布，毫米波andmillimeterwavesmallcellsfollowaPoissonclusterprocessdistribution.Terminalusersa-

微基站服从泊松洞过程分布，终端用户doptaminimumpathlossconnectionstrategytoaccessbasestations,formingcommunication

采取最小路径损耗接入策略，形成相互linkswithmutuallyindependentNakagamifading:Thesignal-to-interferenc-plus-noiseratio

独立的服从Nakagami衰落的通信链路，(SINR)ofthenetworkcommunicationlinksisderived,leadingtoclosed-formexpressionsfor

进一步推导该通信链路的信干噪比，得theSINRcoverageandratecoverage.Simulationresultsdemonstratethattheheterogeneouscel-

出毫米波异构蜂窝网络覆盖盖率和速率lularnetworkwithmillimeterwavesmallcellscaneffectivelyimprovethesystemscoverage

覆盖率闭式表达式。仿真结果表明：含performance:Additionally,modelparameterssuchasthevoidingradiusofthePoissoncluster

有毫米波微基站的异构蜂窝网络能有效processandbasestationdistributiondensitydirectlyimpactthecoverageprobabilityofthemilli-

提高系统的覆盖性能，同时泊松洞过程meterwavehybridheterogeneouscellularnetwork,with