University of Oulu

P. Nouri, H. Alves, R. D. Souza and M. Latva-aho, "In-Band Pilot Overhead in Ultra-Reliable Low Latency Decode and Forward Relaying," 2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring), Kuala Lumpur, Malaysia, 2019, pp. 1-5. doi: 10.1109/VTCSpring.2019.8746566

In-band pilot overhead in ultra-reliable low latency decode and forward relaying

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Author: Nouri, Parisa1; Alves, Hirley1; Demo Souza, Richard2;
Organizations: 1Centre for Wireless Communications (CWC), University of Oulu, Finland
2Federal University of Santa Catarina (UFSC), Brazil
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1.1 MB)
Persistent link:
Language: English
Published: Institute of Electrical and Electronics Engineers, 2019
Publish Date: 2020-01-07


In URLLC the performance of short message communications highly depends on the training sequence length due to the stringent latency and reliability requirements. In this paper, we study the performance of cooperative and non-cooperative transmissions under imperfect channel estimation and Rayleigh fading for URLLC. We assume a peak power constraint on pilot symbols in addition to the average power constraint which is used for comparison purposes. We obtain the optimal training length as a function of blocklength and power constraint factor to meet the URLLC requirements. Moreover, the simulation results show the impact of pilot overhead on reliability, latency, and goodput of cooperative communications compared to point-to-point transmission.

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Series: IEEE Vehicular Technology Conference
ISSN: 1090-3038
ISSN-L: 1090-3038
ISBN: 978-1-7281-1217-6
ISBN Print: 978-1-7281-1218-3
Pages: 1 - 6
DOI: 10.1109/VTCSpring.2019.8746566
Host publication: 2019 IEEE 89th Vehicular Technology Conference (VTC Spring). 28 April – 1 May 2019, Kuala Lumpur, Malaysia
Conference: IEEE Vehicular Technology Conference
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work has been partially supported by the Academy of Finland 6Genesis Flagship (grant no. 318927), Finnish Funding Agency for Technology and Innovation (Tekes), Huawei Technologies, Nokia and Anite Telecoms, Academy of Finland (under Grant no. 307492), and CNPq (Brazil).
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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