Mission-Critical Connectivity Enhanced by IAB in Beyond 5G: Interplay of Sidelink, Directional Unicasting, and Multicasting

Guaranteeing operational connectivity in emergency situations by means of prompt on-demand network re-configuration is crucial to carry out effective public protection and disaster relief actions. This article analyzes network configuration options enhanced by the integrated access backhaul (IAB) fe...

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Bibliographic Details
Published inIEEE open journal of the Communications Society Vol. 4; pp. 1826 - 1838
Main Authors Chukhno, Olga, Chukhno, Nadezda, Pizzi, Sara, Orsino, Antonino, Maattanen, Helka-Liina, Torsner, Johan, Molinaro, Antonella, Iera, Antonio, Araniti, Giuseppe
Format Journal Article
LanguageEnglish
Published New York IEEE 2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
5G mobile communication
5G-Advanced
Configurations
Device-to-device communication
Disaster relief
Emergency procedures
fluid approximation
IAB
Millimeter wave communication
Mission critical systems
mission-critical services
multicast
Multicasting
NR sidelink
Reliability
Safety
Unicast
wireless communications
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Summary:Guaranteeing operational connectivity in emergency situations by means of prompt on-demand network re-configuration is crucial to carry out effective public protection and disaster relief actions. This article analyzes network configuration options enhanced by the integrated access backhaul (IAB) feature for 5G-Advanced and beyond mission-critical services. We specifically aim to investigate the possible interplay of sidelink communications, directional unicast transmissions, and multicasting. To this end, we offer a practical methodology based on a fluid model approximation to capture the time dynamics of mission-critical services in their transient phase. Simulation results show that the interplay of multicasting, unicasting, and sidelink is a highly effective solution for mission-critical communications. In contrast, standalone unicast, multicast, and sidelink transmissions are unable to support such services. A further emerging aspect is that, in a mixed unicast-multicast-sidelink configuration, optimal results are obtained when multicast exploits most of the available resources, specifically more than 70%.
ISSN:2644-125X
2644-125X
DOI:10.1109/OJCOMS.2023.3304022