收发天线硬件损伤下的IRS辅助车联网SWIPT波束赋形设计

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Abstract：In InteligentReflective Surface（RS）-asistedmulti-antenna Internetof Vehicle，theperformancegainsareusaly achievedundertheconditionofperfectantennahardware，butactualantennahardareimpairmentsmayreducethesegains.AjoinactiveandpasivebeamforingdesignmethodisproposedforI-asistedMultiple-IputSingle-Output（MSO）downlnkvhicularSiultaneous WirelessInformationandPowerTransfer（SWIPT）communicationsystemwhere hardwareimpairmentsareconsidered.To minimizethetotaltransmitedpowerofteaseationilecosideringcostraintsicludingsigaltointerfrenceplusisati minimum eceivedenergytresholdandIRSphaseshift，thenon-convex optimizationproblemwithcoupledvariablesistransforedinto a decoupledconvex optimizationproblembyusing methodssuchasSemidefiteRelaxation（SDR）and matrixanalysis theoryAnalteratingiterativeoptimatioalgoithisusedtofdthesolutiontoteoriginalproblem.Simulatinresultsemostratetheessity ofconsideringhardwareimpairmentsintheInteetofVehicle-SWTcommunicationsystemandtheefectivenessofIRSasistanc.It alsoshowesthealgorithmconvergenceandtheimpactonsystempeformanceofveicularspeed，IRreflectiveeementsumbernd other system parameters.

Keywords：IRS；SWIPT;hardware impairment;beamforming; Internetof Vehicle：

0引言

随着智能交通系统的快速发展，车联网技术在提升交通效率和安全性方面发挥着至关重要的作用。（剩余9545字）