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: | Imran, Professor Muhammad and Battistella Nadas, Joao and Zhang, Professor Lei and Valente Klaine, Mr Paulo 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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