基于用户分组的低轨通信卫星跳波束调度方法

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中图分类号：TN929.5 文献标志码：A文章编号：1003-3114（2025）06-1337-06

Abstract：WiththedevelopmentofLowEarth Orbit （LEO）communicationsatelite technology，more and more LEOcommunicationsatelitesperiodcallyuseBam-Hoping（B）tofequentlyoincoveringthegroundaeasostofulfillgroudusersifotioncommunicationrequirementsintecoveredgroundarea.However，thefrequenthoppingwillincreasetheoverheadandcomplexity of theLEOcommunicationsatelite.Therefore，thispaperstudiestheBHschedulingproblemsinLEOcommunicationsatelitetoinimizethehoppngnumberofallbeamsaswellasfulfilallusers’real-ieonlinedemandsandinformatiocommunicationrequirements.Thispaperfirstformulates theproblemintoanintegerprogramandthenproposesapolynomial-timeapproximationBHschedulingmethodbasedonusers groupingtosolvethisproblem.Thisapproximationschedulingmethodexploitsdynamicusers grouping，dynamicbandsdetermininganddynamicBHscheduling toderease theoverallhoping numberofallbeams.Simulationresultsshowthat theproposedschedulingmethodbasedonusersgroupinginthispapercandecreasetheoverallhoppngnumberofallbeamsbyatost about 46% compared with Non-Grouping（NG） scheduling method.

Keywords：LEO communication satellite; BH; users grouping; scheduling methoc

0引言

随着卫星通信技术和移动通信技术的发展，卫星与地面网络融合的思想开始产生，试图将卫星和地面网络紧密连接[1-4]，预计6G移动通信网络将通过补充卫星通信技术实现无所不在的覆盖和随时随地超广域宽带接人[5]。（剩余8207字）