智能反射界面辅助的智慧交通可见光通信系统
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主题词：智能反射界面 可见光通信 误码率停机概率 块误码率中图分类号：TN92 文献标志码：A DOI：10.19620/j.cnki.1000-3703.20241044
Intelligent Transportation Visible Light Communication System Assisted byIntelligent Reflective Surface
YangJian'，LiGuoxingl，HuangXiaoqiong1，²，NiuMingbo1 （1.Schoolof EnergyandElectrical Engineering，Chang'an University，Xi'an710o18;2.BYDAuto Company Limited， Xi'an ）
【AbstractIToaddressthechallenges intecommunicationbetwe infrastructureand vehicles in intellgent transportation systems，thispaperappliesteIntelligentReflectingSurface（IRS）totheintellgenttransportationsystembasedonvisiblelight transmission，anddeeplyanalyzesitschanneltransmissionmodelandtheinfluenceofroadinfrastructureparameters.Byodeling theNon-Line-of-Sight （NLOS）channelbetweentheinfrastructureandvehicles，thetransmisionperformanceofsignals inthe NLOSchannelisanalyzed.Theclosed-formanalyticalsolutionsofthesystemperformancearederivedforthebiterrorrate， downtimeprobabilityandblockerorrateoftheIRS-asstedNOScommunication.Theimpactofthecompoundpintingeror onthebiterrorate，downtimeprobabilityandblockerorratoftheI-asistedNLOScommuncationsysemisalydThe bit error rate performance under M -aryPhase Shift Key （MPSK）modulation and traditional key control modulation is also analyzed.TheexperimentalresultsshowthatundertheIR-asistedNLOStransmissioncondition，whenthelinkfolowsthe double-RayleighdistributionortheRayleigh-Ricecombineddistribution，increasing thedistancebetween thetransceiver devicesand theheightof thestreetlampwillincreasethebiterorrate.Increasingthedowntimethresholdcan increase the downtime probability.Increasing the numberof transmited bitblockscan improvetheblock errorrate.MPSK modulationcan reducethesystemiterorratemorerapidly，ndtheperformanceisenancedasthemodulationorderincreases.Afterconsidering thepointingerrortoesstemitsitrorate，dowtieprobabilitydblockrorateallrease.propoedean effectively enhance system communication performance.
Key words： Intelligent Reflecting Surface （IRS），Visible light communication，Bit errorrate， owntimeprobability，Block errorrate
【引用格式】杨建，李国兴，黄小琼，等.智能反射界面辅助的智慧交通可见光通信系统[J].汽车技术，2025（5）：1-10.YANGJ，LIGX，HUANGXQ，etal.InteligentTansportationVisibleLightCommuicationSystemAssistedbyIntellgntReflective Surface[J]. Automobile Technology，2025（5）： 1-10.
1前言
车载通信技术能够促进车辆、行人和基础设施间的互联互通，对于改善交通流量、提升道路安全性和驾乘舒适度至关重要[1-2]。（剩余12673字）