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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Published in | IEEE open journal of the Communications Society Vol. 4; pp. 1826 - 1838 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
New York
IEEE
2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subjects | |
Online Access | Get full text |
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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%. |
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ISSN: | 2644-125X 2644-125X |
DOI: | 10.1109/OJCOMS.2023.3304022 |