IEEE 802.11ax在城市轨道交通车地无线系统中的应用研究-豆柴文库

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IEEE802.11ax在城市轨道交通车地无线系统中的应用研究
Title:ApplicationResearchofIEEE802.11axinUrbanRailWirelessSystems
Abstract:
Withtherapiddevelopmentofurbanrailtransportation,theneedforefficientandreliablewirelesscommunicationsystemshasbecomeincreasinglyimportant.ThisresearchpaperfocusesonexploringtheapplicationofIEEE802.11axinurbanrailwirelesssystems.Weinvestigatethepotentialadvantages,challenges,andopportunitiesthatthistechnologybringstoenhancetheconnectivity,throughput,andqualityofservice(QoS)inurbanrailenvironments.Throughanin-depthanalysis,wedemonstratethatIEEE802.11axhasgreatpotentialintransformingandimprovingwirelessconnectivityinurbanrailsystems.
1.Introduction:
1.1Background:
Urbanrailtransportationsystemsplayacrucialroleinthemodernurbanlandscape,offeringconvenientandefficienttraveloptionstoalargenumberofpassengers.Inordertoensuresmoothandsafeoperations,theimplementationofreliablewirelesscommunicationsystemsisessential.
1.2Motivation:
Traditionalwirelesstechnologies,suchasIEEE802.11nandIEEE802.11ac,facevariouschallengesintheurbanrailenvironment,includingcapacitylimitations,interferenceissues,andcongestionduetothedenseandfast-movingnatureofurbanrailsystems.Thenext-generationtechnology,IEEE802.11ax,providesapromisingsolutiontoaddressthesechallenges.
2.OverviewofIEEE802.11ax:
IEEE802.11ax,alsoknownasWi-Fi6,isthelatestwirelessstandardthatofferssignificantimprovementsindatarates,capacity,andperformancecomparedtoitspredecessors.KeyfeaturesofIEEE802.11ax,suchasOrthogonalFrequencyDivisionMultipleAccess(OFDMA),Multi-UserMultipleInputMultipleOutput(MU-MIMO),TargetWakeTime(TWT),andimprovedchannelaccessmechanisms,makeitwell-suitedforurbanrailwirelesssystems.
3.AdvantagesandOpportunities:
3.1EnhancedCapacity:
TheOFDMAfeatureinIEEE802.11axallowsforefficientchannelallocation,enablingthesystemtoservemultipleuserssimultaneously.Thisresultsinasignificantincreaseinthecapacityofthesystem,addressingtheproblemoflimitedbandwidthindenseurbanrailenvironments.
3.2ImprovedThroughput:
MU-MIMOtechnology