Analysis of Duplexing Patterns in Multi-Hop mmWave Integrated Access and Backhaul Systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F24%3APU152028" target="_blank" >RIV/00216305:26220/24:PU152028 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/10644135/" target="_blank" >https://ieeexplore.ieee.org/document/10644135/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/OJCOMS.2024.3449234" target="_blank" >10.1109/OJCOMS.2024.3449234</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of Duplexing Patterns in Multi-Hop mmWave Integrated Access and Backhaul Systems

Popis výsledku v původním jazyce

Integrated Access and Backhaul (IAB) technology promises to facilitate cost-effective deployments of 5G New Radio (NR) systems operating in both sub-6 GHz and millimeter-wave (mmWave) bands. As full-duplex wireless systems are in their infancy, initial deployments of IAB networks may need to rely on half-duplex operation to coordinate transmissions between access and backhaul links. However, the use of half-duplex operation not only makes the scheduling of links in the IAB networks interdependent, but also the number of their feasible combinations grows exponentially with the network size, thereby posing challenges to the optimal design of such systems. In this paper, by accounting for mmWave radio characteristics, we propose a joint resource allocation and link scheduling framework to enhance the user equipment (UE) throughput in multi-hop in-band IAB systems. We keep the problem in the form of linear programming type for the feasibility of the practical applications. We show that the increased number of uplink and downlink transmission time interval (TTI) configurations does not result in improved UE throughput as compared to two configurations. Further, we demonstrate that in-band IAB systems tend to be backhaul-limited, and the utilization of multi-beam functionality at the IAB-donor alleviates this limitation by doubling the average UE throughput. Finally, we show that the use of proportional-fair allocations allows the average UE throughput to be improved by around 10% as compared to the max-min allocations.

Název v anglickém jazyce

Analysis of Duplexing Patterns in Multi-Hop mmWave Integrated Access and Backhaul Systems

Popis výsledku anglicky

Integrated Access and Backhaul (IAB) technology promises to facilitate cost-effective deployments of 5G New Radio (NR) systems operating in both sub-6 GHz and millimeter-wave (mmWave) bands. As full-duplex wireless systems are in their infancy, initial deployments of IAB networks may need to rely on half-duplex operation to coordinate transmissions between access and backhaul links. However, the use of half-duplex operation not only makes the scheduling of links in the IAB networks interdependent, but also the number of their feasible combinations grows exponentially with the network size, thereby posing challenges to the optimal design of such systems. In this paper, by accounting for mmWave radio characteristics, we propose a joint resource allocation and link scheduling framework to enhance the user equipment (UE) throughput in multi-hop in-band IAB systems. We keep the problem in the form of linear programming type for the feasibility of the practical applications. We show that the increased number of uplink and downlink transmission time interval (TTI) configurations does not result in improved UE throughput as compared to two configurations. Further, we demonstrate that in-band IAB systems tend to be backhaul-limited, and the utilization of multi-beam functionality at the IAB-donor alleviates this limitation by doubling the average UE throughput. Finally, we show that the use of proportional-fair allocations allows the average UE throughput to be improved by around 10% as compared to the max-min allocations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20203 - Telecommunications

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Open Journal of the Communications Society

ISSN

2644-125X

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

Neuvedeno

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

5392-5407

Kód UT WoS článku

001308212800008

EID výsledku v databázi Scopus

2-s2.0-85192596827