Article (Scientific journals)
NB-IoT Random Access for Non-Terrestrial Networks: Preamble Detection and Uplink Synchronization
Chougrani, Houcine; Kisseleff, Steven; Alves Martins, Wallace et al.
2021In IEEE Internet of Things Journal
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Keywords :
—NB-IoT, 3GPP, Random Access, 5G, NTN, Satellite
Abstract :
[en] The satellite component is recognized as a promising solution to complement and extend the coverage of future Internet of things (IoT) terrestrial networks (TNs). In this context, a study item to integrate satellites into narrowband-IoT (NBIoT) systems has been approved within the 3rd Generation Partnership Project (3GPP) standardization body. However, as NBIoT systems were initially conceived for TNs, their basic design principles and operation might require some key modifications when incorporating the satellite component. These changes in NB-IoT systems, therefore, need to be carefully implemented in order to guarantee a seamless integration of both TN and non-terrestrial network (NTN) for a global coverage. This paper addresses this adaptation for the random access (RA) step in NBIoT systems, which is in fact the most challenging aspect in the NTN context, for it deals with multi-user time-frequency synchronization and timing advance for data scheduling. In particular, we propose an RA technique which is robust to typical satellite channel impairments, including long delays, significant Doppler effects, and wide beams, without requiring any modification to the current NB-IoT RA waveform. Performance evaluations demonstrate the proposal’s capability of addressing different NTN configurations recently defined by 3GPP for the 5G new radio system.
Research center :
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM
Disciplines :
Electrical & electronics engineering
Author, co-author :
Chougrani, Houcine ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Kisseleff, Steven ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Alves Martins, Wallace ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Chatzinotas, Symeon  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
External co-authors :
no
Language :
English
Title :
NB-IoT Random Access for Non-Terrestrial Networks: Preamble Detection and Uplink Synchronization
Publication date :
October 2021
Journal title :
IEEE Internet of Things Journal
eISSN :
2327-4662
Publisher :
Institute of Electrical and Electronics Engineers
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Security, Reliability and Trust
FnR Project :
FNR14767486 - Self-organised Lower Earth Orbit Mega-constellations, 2020 (01/09/2021-31/08/2024) - Symeon Chatzinotas
Name of the research project :
Self-Organized Lower Earth Orbit Mega-Constellations
Funders :
FNR - Fonds National de la Recherche [LU]
Available on ORBilu :
since 22 December 2021

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