基金项目:国家自然科学基金(61872204);黑龙江省自然科学基金(LH2019F038);黑龙江省高校基本科研业务专项(135309340)。收稿日期:2021-04-08修回日期:2021-06-16第40卷第2期计算机仿真2023年2月文章编号:1006-9348(2023)02-0517-07基于混合遗传算法的OFDMA资源分配方法孙明,翟康乐,曹伟,张辉(齐齐哈尔大学计算机与控制工程学院,黑龙江齐齐哈尔161006)摘要:现有的OFDMA资源分配算法无法在保障公平度阈值的前提下有效地最大化系统和速率。针对上述问题,提出了一种基于混合遗传算法的OFDMA资源分配方法。首先将遗传算法的种群个体进行分组并为个体分组设置个体更新量,然后在此基础上采用贪婪子载波分配初始化种群个体,并通过个体更新量降低个体的待优化的维度数量,充分发挥遗传算法的寻优能力。仿真结果表明,所提出的方法能够在等功率的子载波分配阶段即可实现所要求的公平度阈值并能最大化系统和速率,证明了所提出方法的有效性。关键词:遗传算法;个体更新量;子载波分配;公平度阈值中图分类号:TP301.6文献标识码:BOFDMAResourceAllocationMethodBasedonHybridGeneticAlgorithmSUNMing,ZHAIKang-le,CAOWei,ZHANGHui(CollegeofComputerandControlEngineering,QiqiharUniversity,QiqiharHeilongjiang161006,China)ABSTRACT:TheexistingOFDMAresourceallocationalgorithmscannoteffectivelymaximizethesystemsumdatarateonthepremiseofguaranteeingthefairnessthreshold.Aimingattheproblem,thispaperproposesanOFDMAre-sourceallocationalgorithmbasedonahybridgeneticalgorithm.First,theindividualsofthepopulationweredividedintodifferentgroupsanddifferentrenewalquantitiesweresetforeachgroup.Then,agreedysub-carrierallocationmethodwasutilizedtoinitializetheindividualsofthepopulation,andrenewalquantitiesofindividualswereusedtoreducetheindividualdimensionalitytobeoptimized,therebygivingafullplayoftheoptimizationabilityofthegeneticalgorithm.Thesimulationresultsshowthattheproposedmethodcanachievetherequiredfairnessthresholdandmaxi-mizethesumdatarateofthesystemjustinthesub-carrierallocationphasewithequalpower,whichprovesthevalid-ityoftheproposedmethod.KEYWORDS:Geneticalgorithm;Individualrenewalquantity;Sub-carrierallocation;Fairnessthreshold1引言在过去的...