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Design and Assessment of Low-Latency Random Access Procedures in 5G Networks

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Author: Raftopoulou, M. · Jorguseski, L. · Litjens, R.
Type:article
Date:2019
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source:2019 European Conference on Networks and Communications, EuCNC 2019, 28th European Conference on Networks and Communications, EuCNC 2019, 18 June 2019 through 21 June 2019, 406-411
Identifier: 869349
ISBN: 9781730000000
Article number: 8801962
Keywords: 5G networks · Factory of the Future · Random access · Smart Industry · URLLC services · Europium compounds · Mobile telecommunication systems · Nitrogen compounds · Queueing networks · Radio access networks · Access technology · G-networks · Low-latency communication · Performance assessment · Simulation-based performance assessments · Theoretical minimum

Abstract

We design and assess novel random access (RA) procedures for use in 5G radio access networks in support of machine-type applications requiring Ultra-Reliable Low-Latency Communications (URLLC). In a simulation-based performance assessment the proposed RA procedures are compared against LTE Cat-M1 (or LTE-M), the current LTE-based access technology for such applications, considering a Factory of the Future scenario and a realistic density and mix of URLLC and non-URLLC devices. As a key outcome, the most promising Two-step RA with Feedback procedure is demonstrated to be able to satisfy the 3GPP-imposed 10 ms (50 ms) latency requirement of URLLC (non-URLLC) applications in 99.901% (99.997%) of the cases, with a theoretical minimum access latency of only 5 ms.