Performance Analysis of Early-HARQ for Finite Block-Length Packet Transmission

Nadas, J., Klaine, P., Zhang, L. , Zhao, G. , Imran, M. and Souza, R. (2019) Performance Analysis of Early-HARQ for Finite Block-Length Packet Transmission. In: IEEE International Conference on Industrial Cyber-Physical Systems (ICPS 2019), Taipei, Taiwan, 06-09 May 2019, pp. 391-396. ISBN 9781538685006 (doi:10.1109/ICPHYS.2019.8780207)

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Abstract

Traditional retransmission protocols require the receiver to decode the entire packet before sending feedback signals, which may not be a viable solution for ultra-reliable and low-latency communications (URLLC) as it may cause a significant delay. To address this issue, early hybrid automatic repeat request (E-HARQ) has been proposed as an alternative to reduce the processing time at the receiver and send the feedback signal as quickly as possible. In this work, we present a framework for analyzing the performance of ARQ protocols considering URLLC requirements for finite block-length packet transmission and use it to evaluate the performance of E-HARQ from an information theory perspective, comparing it to simple ARQ. The results show that this new class of retransmission protocols can significantly improve the performance of URLLC systems.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Valente Klaine, Paulo and Imran, Professor Muhammad and Battistella Nadas, Joao and Zhang, Dr Lei and Zhao, Dr Guodong
Authors: Nadas, J., Klaine, P., Zhang, L., Zhao, G., Imran, M., and Souza, R.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
ISBN:9781538685006
Copyright Holders:Copyright © 2019 IEEE
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
3007250Distributed Autonomous Resilient Emergency Management System (DARE)Muhammad ImranEngineering and Physical Sciences Research Council (EPSRC)EP/P028764/1ENG - Systems Power & Energy