Journal of Kunming Metallurgy College ›› 2024, Vol. 40 ›› Issue (6): 49-.DOI: 10.3969/j.issn.1009-0479.2024.06.009
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Abstract: NonOrthogonalMultipleAccess(NOMA)isakeytechnologyfor5G,whichhassignificant advantagesinimprovingspectrum efficiencyandsystem performancebydifferentiatingusersbasedon powerdomainandeffectivelyallocatingpower.Themainpurposeofthisarticleistostudytheenergyef ficiencyoptimizationproblemofthedownlinksysteminNOMAandtomaximizethesystemthroughputby designingareasonablepowerallocationscheme.ThebasicprinciplesandsystemarchitectureoftheNon OrthogonalMultipleAccessSystem areintroduced.Then,anoptimizedpowerallocationalgorithm is proposedbasedonthestandardParticleSwarmOptimizationalgorithmandtheimprovedParticleSwarm Optimizationalgorithm isusedtosolvetheobjectivefunctionofmaximizingsystem energyefficiency. Simulationresultsshowthatthisschemecaneffectivelyimprovesystemenergyefficiency.
Key words: Nonorthogonalmultipleaccess, particleswarmoptimization, energyefficiency, poweral location
CLC Number:
TN925
SONGHao1a , CHENYunchuan1a , ZHONGZhixian1b , LIWeixian2 , TAIMengsiyun1a. PowerAllocationStrategyBasedonParticleSwarm OptimizationAlgorithm inNOMASystem[J]. Journal of Kunming Metallurgy College, 2024, 40(6): 49-.
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URL: http://kmyzxb.magtech.com.cn/EN/10.3969/j.issn.1009-0479.2024.06.009
http://kmyzxb.magtech.com.cn/EN/Y2024/V40/I6/49