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Spectral Coexistence of QoS-Constrained and IoT Traffic in Satellite Systems

Munari, Andrea and Clazzer, Federico (2021) Spectral Coexistence of QoS-Constrained and IoT Traffic in Satellite Systems. Sensors. Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/s21144630. ISSN 1424-8220.

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The flourishing of Internet of Things (IoT) applications, characterized by vast transmitter populations and the sporadic transmission of small data units, demands innovative solutions for the sharing of the wireless medium. In this context, satellite connectivity is an important enabler for all scenarios in which terminals are under-served by terrestrial communications and are thus fundamental for providing worldwide coverage. In turn, the design of medium access policies that attain efficient use of the scarce spectrum and can cope with flexible yet unpredictable IoT traffic is of the utmost importance. Starting from these remarks, we investigate in this work the coexistence of a quality of service (QoS)-constrained service with IoT traffic in a shared spectrum as alternative to a more traditional orthogonal allocation among the two services, with an eye on satellite applications. Leaning on analytical tools, we provide achievable rate regions, assuming a slotted ALOHA access method for IoT terminals and accounting for practical aspects, such as the transmission of short packets. Interesting trends emerge, showcasing the benefit of an overlay allocation with respect to segregating the resources for the two services.

Item URL in elib:https://elib.dlr.de/145639/
Document Type:Article
Title:Spectral Coexistence of QoS-Constrained and IoT Traffic in Satellite Systems
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Munari, AndreaUNSPECIFIEDhttps://orcid.org/0000-0003-1506-2792UNSPECIFIED
Clazzer, FedericoUNSPECIFIEDhttps://orcid.org/0000-0002-9688-2436UNSPECIFIED
Date:September 2021
Journal or Publication Title:Sensors
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Keywords:machine-type communications; grant-free access; spectrum-sharing; IoT via satellite
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Global Connectivity for People and Machines
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Satellite Networks
Deposited By: Clazzer, Federico
Deposited On:08 Dec 2021 08:45
Last Modified:29 Mar 2023 00:00

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