Dynamic Adjustment of Scheduling Period in Mobile Networks Based on C-RAN

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F21%3A00354065" target="_blank" >RIV/68407700:21230/21:00354065 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/VTC2021-Fall52928.2021.9625329" target="_blank" >https://doi.org/10.1109/VTC2021-Fall52928.2021.9625329</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/VTC2021-Fall52928.2021.9625329" target="_blank" >10.1109/VTC2021-Fall52928.2021.9625329</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dynamic Adjustment of Scheduling Period in Mobile Networks Based on C-RAN

Popis výsledku v původním jazyce

The cloud radio access network (C-RAN) is considered as one of the compelling architectures to meet requirements of the future mobile networks in term of delivering cutting-edge applications and increasing the network flexibility. However, one of the key challenges to cope with in the C-RAN is the fronthaul delay between the baseband unit (BBU) and remote radio head (RRH). The fronthaul delay impacts negatively on various radio resource management techniques including scheduling. The scheduling suffers from the fronthaul due to an additional delay between the time when inputs for the scheduling are provided by the users and the time when the new scheduling is applied. In this paper, we propose a dynamic adjustment of the centralized scheduling period aiming to suppress the negative impact of the fronthaul delay and to increase the network throughput. To this end, we propose two algorithms estimating the scheduling period for individual users: i) from previous channel quality information, and ii) via a prediction of the future channel quality. Simulation results show that both proposed solutions not only provide a network throughput close to the theoretical upper bound but also outperform existing approaches.

Název v anglickém jazyce

Dynamic Adjustment of Scheduling Period in Mobile Networks Based on C-RAN

Popis výsledku anglicky

The cloud radio access network (C-RAN) is considered as one of the compelling architectures to meet requirements of the future mobile networks in term of delivering cutting-edge applications and increasing the network flexibility. However, one of the key challenges to cope with in the C-RAN is the fronthaul delay between the baseband unit (BBU) and remote radio head (RRH). The fronthaul delay impacts negatively on various radio resource management techniques including scheduling. The scheduling suffers from the fronthaul due to an additional delay between the time when inputs for the scheduling are provided by the users and the time when the new scheduling is applied. In this paper, we propose a dynamic adjustment of the centralized scheduling period aiming to suppress the negative impact of the fronthaul delay and to increase the network throughput. To this end, we propose two algorithms estimating the scheduling period for individual users: i) from previous channel quality information, and ii) via a prediction of the future channel quality. Simulation results show that both proposed solutions not only provide a network throughput close to the theoretical upper bound but also outperform existing approaches.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20203 - Telecommunications

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall)

ISBN

978-1-6654-1369-5

ISSN

2577-2465

e-ISSN

—

Počet stran výsledku

7

Strana od-do

1-7

Název nakladatele

IEEE Conference Publications

Místo vydání

Piscataway

Místo konání akce

Norman, OK

Datum konání akce

27. 9. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000786411900208