有限块长URLLC多用户下行资源分配联合优化算法

打开文本图片集

中图分类号：TN929.5 文献标志码：A文章编号：1003-3114（2025）06-1149-10

Abstract：Aimingattheresourcealocationproblemunder finiteblock lengthcoding inmulti-userUltra-ReliableLow-Latency Communication（URLLC）systems，theresearch focusesonsolvingtheresourcecompetitionproblemwhen weighingdelay，reliability andservicerategaininnon-line-ofsightscenarios.Inthecontextthattraditioalinfiniteblocklengthcodingcannotmetextreelylow delayrequirements，aresouealocationmodelintegratigblocklengthconstraintsanddecodingerroratesisstablshed.Byadopting anoptimizationstrategycombining thebinarysearchmethodandthePenalizedPath-FollowingAlgorithm（PPFA），thenon-convexoptimizationproblemistransformedintoaconvexprogrammingsolution，therebyachieving jointoptimizationofcodelength，powerand beamforming.Studiesshowthattheproposedschemecanefectivelyincreasethe minimumusertransmisionrateofthesystem.Under thegivenpacketerorratecondion，thecodelengthshowsadownwardtrendwhenthetransmisionpowerincreases，verifyingthe trade-offmechansmbetweensystemreliabilityanddelay.Thisresourcealocationschemeprovidestheoreticalandalgorithmicsupport forimprovingthesecurecommunicationperformanceof URLLC networksandbalancing theresourcecompetitionamong multipleusers， laying the foundation forthelow-latencyand highlyreliable transmission of 5G/6Gwirelesscommunicationsystems.

Keywords：URLLC；finite block length coding;resource allocation；delay trade-off

0引言

随着用户规模的不断扩大以及对通信服务质量需求的日益提升，5G技术及其未来演进方向逐渐成为研究热点。（剩余13192字）