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Article Dans Une Revue IEEE Journal on Selected Areas in Communications Année : 2019

Radio Resource Allocation and Retransmission Schemes for URLLC over 5G networks

Patrick Brown
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Ana Galindo-Serrano
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Résumé

Low latency targets for Ultra-Reliable Low Latency Communications (URLLC) may be conflicting with their stringent reliability requirements due to the need for re-transmissions. We explore in this paper the different resource allocation schemes for transmissions and re-transmissions depending on the requirements of the underlying service and on the traffic characteristics, focusing on Industrial Internet of Things (IIoT). We namely consider schemes with individual reservation versus a pool of contention-based reserved resources. We provide novel resource allocation schemes for initial transmissions and re-transmissions and derive corresponding analytical models for loss rates. We then show how to set the system parameters that allow meeting the URLLC requirements with low resource consumption.
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Dates et versions

hal-02117082 , version 1 (02-05-2019)

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Salah Eddine Elayoubi, Patrick Brown, Matha Deghel, Ana Galindo-Serrano, Salah Eddine Elayoubi. Radio Resource Allocation and Retransmission Schemes for URLLC over 5G networks. IEEE Journal on Selected Areas in Communications, 2019, 37 (4), pp.896-904. ⟨10.1109/jsac.2019.2898783⟩. ⟨hal-02117082⟩
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