信息与智能2023NO.8SCIENCE&TECHNOLOGYINFORMATION科技资讯SCIENCE&TECHNOLOGYINFORMATION科技资讯基于分组的D2D通信功率控制算法丁晨石振刚*(沈阳理工大学信息科学与工程学院辽宁沈阳110159)摘要:为解决现有蜂窝网络中设备对设备(DevicetoDevice,D2D)通信的功率控制算法中路径损耗补偿系数固定导致基站与D2D用户之间产生同频干扰的问题,文章提出了一种基于分组的功率控制算法。所提算法在传统闭环功率控制算法的基础上,利用D2D用户到基站的距离和D2D用户到蜂窝用户的距离,计算出路径损耗补偿系数增补量,并设定3组干扰区域对路径损耗补偿系数的增补量大小进行区分,最后采用联合闭环功率对系统进行干扰抑制。通过仿真实验可得知,该算法比使用传统闭环功率控制算法的系统的信干噪比(SignaltoInterferencePlusNoiseRatio,SINR)和吞吐量得到了提高,可以显著提高蜂窝网络中D2D通信的功率控制性能,达到干扰抑制的作用。关键词:设备对设备蜂窝网络功率控制路径损耗补偿系数干扰抑制中图分类号:TN929.5文献标识码:A文章编号:1672-3791(2023)08-0013-04Packet-BasedD2DCommunicationPowerControlAlgorithmDINGChenSHIZhengang*(SchoolofInformationScienceandEngineering,ShenyangLigongUniversity,Shenyang,LiaoningProvince,110159China)Abstract:Inordertosolvetheproblemofco-channelinterferencebetweenthebasestationandtheD2DusercausedbythefixedpathlosscompensationcoefficientinthepowercontrolalgorithmofD2Dcommunicationintheexistingcellularnetwork,thispaperproposesapacket-basedpowercontrolalgorithm.Onthebasisofthetra‐ditionalclosed-looppowercontrolalgorithm,thisalgorithmusesthedistancefromD2DuserstobasestationsandthedistancefromD2Dtocellularuserstocalculatethesupplementofthepathlosscompensationcoefficient,andsetsthreegroupsofinterferenceregionstodistinguishthesizeofthesupplementofthepathlosscompensationco‐efficient,andfinallyusesthejointclosed-looppowertoperformtheinterferencesuppressiononthesystem.Throughsimulationexperiments,itcanbeseenthatthisalgorithmhasimprovedSINRandthroughputcomparedwiththesystemusingthetraditionalclosed-looppowercontrolalgorithm,andcansignificantlyimprovetheper‐formanceofpowercontrolofD2Dcommunicationincellularnetworksandac...