Search results for "Uplink channel"

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Downlink channel access performance of NR-U: Impact of numerology and mini-slots on coexistence with Wi-Fi in the 5 GHz band

2020

Coexistence between cellular systems and Wi-Fi gained the attention of the research community when LTE License Assisted Access (LAA) entered the unlicensed band. The recent introduction of NR-U as part of 5G introduces new coexistence opportunities because it implements scalable numerology (flexible subcarrier spacing and OFDM symbol lengths), and non-slot based scheduling (mini-slots), which considerably impact channel access. This paper analyzes the impact of NR-U settings on its coexistence with Wi-Fi networks and compares it with LAA operation using simulations and experiments. First, we propose a downlink channel access simulation model, which addresses the problem of the dependency an…

Networking and Internet Architecture (cs.NI)FOS: Computer and information sciencesUplink channelSettore ING-INF/03 - TelecomunicazioniComputer Networks and Communicationsbusiness.industryComputer scienceOrthogonal frequency-division multiplexingComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS5G NR-U Coexistence IEEE 802.11 LTE LAA Unlicensed bands020206 networking & telecommunications02 engineering and technology91A06 91A10 91A80SubcarrierScheduling (computing)Computer Science - Networking and Internet ArchitectureC.2.0C.2.50202 electrical engineering electronic engineering information engineering020201 artificial intelligence & image processingC.2.0; C.2.5business5GComputer networkCommunication channelComputer Networks
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