MAC Layer Enhancements for Ultra-Reliable Low-Latency Communications in Cellular Networks

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Resumé

Ultra-reliable low-latency communications (URLLC) entail the transmission of sporadic and small packets, with low latency and very high reliability. Among many potential areas of optimization for URLLC, the problems of large delays during HARQ retransmissions, and inaccurate link adaptation as a consequence of the rapidly-varying interference conditions are highlighted. The former is addressed by reducing the TTI length and HARQ round-trip time, as compared to what is used in LTE; whereas including time-filtered interference information in the CQI report also shows great potential. Extensive system-level simulations of the downlink performance show that the URLLC requirements, i.e. latencies below 1 ms and 99.999% reliability, are achievable at low load scenarios, whereas some performance degradation (1.4 - 2.4 ms latency) is experienced at higher loads due to the increased queuing delay and inter-cell interference.
OriginalsprogEngelsk
Titel2017 IEEE International Conference on Communications Workshops (ICC Workshops)
Antal sider6
ForlagIEEE
Publikationsdatomaj 2017
Sider1005-1010
ISBN (Elektronisk)978-1-5090-1525-2
DOI
StatusUdgivet - maj 2017
BegivenhedIEEE International Conference on Communications 2017 - Paris, Frankrig
Varighed: 21 maj 201725 maj 2017
http://icc2017.ieee-icc.org/

Konference

KonferenceIEEE International Conference on Communications 2017
LandFrankrig
ByParis
Periode21/05/201725/05/2017
Internetadresse
NavnIEEE International Conference on Communications Workshops (ICC Workshops)
Vol/bind2017
ISSN2474-9133

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Communication
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Gerardino, G. A. P., Alvarez, B. S., Pedersen, K. I., & Mogensen, P. E. (2017). MAC Layer Enhancements for Ultra-Reliable Low-Latency Communications in Cellular Networks. I 2017 IEEE International Conference on Communications Workshops (ICC Workshops) (s. 1005-1010). IEEE. IEEE International Conference on Communications Workshops (ICC Workshops), Bind. 2017 https://doi.org/10.1109/ICCW.2017.7962790
Gerardino, Guillermo Andrés Pocovi ; Alvarez, Beatriz Soret ; Pedersen, Klaus I. ; Mogensen, Preben Elgaard. / MAC Layer Enhancements for Ultra-Reliable Low-Latency Communications in Cellular Networks. 2017 IEEE International Conference on Communications Workshops (ICC Workshops). IEEE, 2017. s. 1005-1010 (IEEE International Conference on Communications Workshops (ICC Workshops), Bind 2017).
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title = "MAC Layer Enhancements for Ultra-Reliable Low-Latency Communications in Cellular Networks",
abstract = "Ultra-reliable low-latency communications (URLLC) entail the transmission of sporadic and small packets, with low latency and very high reliability. Among many potential areas of optimization for URLLC, the problems of large delays during HARQ retransmissions, and inaccurate link adaptation as a consequence of the rapidly-varying interference conditions are highlighted. The former is addressed by reducing the TTI length and HARQ round-trip time, as compared to what is used in LTE; whereas including time-filtered interference information in the CQI report also shows great potential. Extensive system-level simulations of the downlink performance show that the URLLC requirements, i.e. latencies below 1 ms and 99.999{\%} reliability, are achievable at low load scenarios, whereas some performance degradation (1.4 - 2.4 ms latency) is experienced at higher loads due to the increased queuing delay and inter-cell interference.",
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Gerardino, GAP, Alvarez, BS, Pedersen, KI & Mogensen, PE 2017, MAC Layer Enhancements for Ultra-Reliable Low-Latency Communications in Cellular Networks. i 2017 IEEE International Conference on Communications Workshops (ICC Workshops). IEEE, IEEE International Conference on Communications Workshops (ICC Workshops), bind 2017, s. 1005-1010, Paris, Frankrig, 21/05/2017. https://doi.org/10.1109/ICCW.2017.7962790

MAC Layer Enhancements for Ultra-Reliable Low-Latency Communications in Cellular Networks. / Gerardino, Guillermo Andrés Pocovi; Alvarez, Beatriz Soret; Pedersen, Klaus I.; Mogensen, Preben Elgaard.

2017 IEEE International Conference on Communications Workshops (ICC Workshops). IEEE, 2017. s. 1005-1010 (IEEE International Conference on Communications Workshops (ICC Workshops), Bind 2017).

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

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AU - Gerardino, Guillermo Andrés Pocovi

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Gerardino GAP, Alvarez BS, Pedersen KI, Mogensen PE. MAC Layer Enhancements for Ultra-Reliable Low-Latency Communications in Cellular Networks. I 2017 IEEE International Conference on Communications Workshops (ICC Workshops). IEEE. 2017. s. 1005-1010. (IEEE International Conference on Communications Workshops (ICC Workshops), Bind 2017). https://doi.org/10.1109/ICCW.2017.7962790