基于主干网辅助的NOMA边缘网络任务卸载与资源分配研究

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中图分类号：TN919.23 文献标志码：A文章编号：1003-3114（2025）04-0798-09

doi：10.3969/j. issn.1003-3114.2025.04.017

Abstract：Non-Orthogonal MultipleAccess（NOMA）transmissonmodeoffers highspectrumeffciencyandhighconnection density，makingitparticularlysuitableforulti-userdgenetworks.However，intraditioalNOMA，achaccsspontindepedetly decodessignalsanditslimiteddecodingcapacityfailstomeet，hightransmisionratedemandsofusernodes，which intuffects networklatencyIncomparisonwithtraditioalNOMA，backboe-asstedNOMAtransmsionodeeablescooperativedecdingetweenaccespoitsadsigalshaingimprovingdecodingapabitofaccsspintsispaperinvestigatesthotizatioofnt worklatencyinbackbone-asstedNOMAwithjointpartialtaskoffoadingandresourcealocation.Theproblemisforuatedasa mixednonlinearintegerprogrammingmodelTosolvethisNon-deterministicPolynomial（P）hardproblem，atwo-stageiterativealgo rithmisproposedtobtainanappoximateptimalsolutionFinall，simulationexperimentsdemostratethattheproposdalgori improves latency performance by 37.2% compared to traditional NOMA transmission.

Keywords：NOMA；backbonenetwork；task offloading;resource allocatiol

0 引言

随着物联网和智能设备的普及，移动边缘计算（MobileEdgeComputing，MEC）网络迅速兴起，成为支持实时应用的重要基础架构[1]。（剩余13877字）