Achieving Ultra-Reliable Low-Latency Communications: Challenges and Envisioned System Enhancements

Guillermo Pocovi; Hamidreza Shariatmadari; Gilberto Berardinelli; Klaus I. Pedersen; Jens Steiner; Zexian Li

doi:10.1109/MNET.2018.1700257

Achieving Ultra-Reliable Low-Latency Communications: Challenges and Envisioned System Enhancements

Guillermo Pocovi
, Hamidreza Shariatmadari
, Gilberto Berardinelli
, Klaus I. Pedersen
, Jens Steiner
, Zexian Li

Research output: Contribution to journal › Article › Scientific › peer-review

127 Citations (Scopus)

Abstract

URLLC have the potential to enable a new range of applications and services: from wireless control and automation in industrial environments to self-driving vehicles. 5G wireless systems are faced by different challenges for supporting URLLC. Some of the challenges, particularly in the downlink direction, are related to the reliability requirements for both data and control channels, the need for accurate and flexible link adaptation, reducing the processing time of data retransmissions, and the multiplexing of URLLC with other services. This article considers these challenges and proposes state-of-the-art solutions covering different aspects of the radio interface. In addition, system-level simulation results are presented, showing how the proposed techniques can work in harmony in order to fulfill the ambitious latency and reliability requirements of upcoming URLLC applications.

Original language	English
Pages (from-to)	8-15
Number of pages	8
Journal	IEEE Network
Volume	32
Issue number	2
DOIs	https://doi.org/10.1109/MNET.2018.1700257
Publication status	Published - 1 Mar 2018
MoE publication type	A1 Journal article-refereed

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AU - Pedersen, Klaus I.

AU - Steiner, Jens

AU - Li, Zexian

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AB - URLLC have the potential to enable a new range of applications and services: from wireless control and automation in industrial environments to self-driving vehicles. 5G wireless systems are faced by different challenges for supporting URLLC. Some of the challenges, particularly in the downlink direction, are related to the reliability requirements for both data and control channels, the need for accurate and flexible link adaptation, reducing the processing time of data retransmissions, and the multiplexing of URLLC with other services. This article considers these challenges and proposes state-of-the-art solutions covering different aspects of the radio interface. In addition, system-level simulation results are presented, showing how the proposed techniques can work in harmony in order to fulfill the ambitious latency and reliability requirements of upcoming URLLC applications.

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Achieving Ultra-Reliable Low-Latency Communications: Challenges and Envisioned System Enhancements

Abstract

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