mireabulletinRussian Technological JournalRussian Technological Journal2782-32102500-316XRTU MIREA10.32362/2500-316X-2021-9-5-14-25mireabulletin-364Research ArticleСОВРЕМЕННЫЕ РАДИОТЕХНИЧЕСКИЕ И ТЕЛЕКОММУНИКАЦИОННЫЕ СИСТЕМЫMODERN RADIO ENGINEERING AND TELECOMMUNICATION SYSTEMSАнализ и оценка эффективности методов обеспечения качества обслуживания программно-конфигурируемых сетей стандарта 5G/IMT-2020Analysis and evaluation of the effectiveness of methods for ensuring the quality of service for software-defined networks of the standard 5G/IMT-2020ДанешмандБехруз МехдиDaneshmandBehrooz

Данешманд Бехруз Мехди, аспирант, факультет инфокоммуникационных технологий 

197101, Санкт-Петербург, Кронверкский пр-т, д. 49, лит. А

Behrooz Daneshmand, PostgraduateStudent, Faculty of Infocommunication Technologies

49−A, Kronverkskii pr., St. Petersburg, 197101 

daneshmandbehrooz@gmail.comСанкт-Петербургский национальный исследовательский университет информационных технологий, механики и оптикиРоссияTMO UniversityRussian Federation202125102021951425Copyright © Данешманд Б.М., 20212021Данешманд Б.М.Daneshmand B.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.rtj-mirea.ru/jour/article/view/364

Качество обслуживания в сети (QoS) – это процесс управления сетевыми ресурсами для уменьшения потери пакетов, а также уменьшения джиттера и задержки. QoS широко используется в традиционных сетях, а также может быть реализован в стандарте 5G на основе программно-конфигурируемой сети (SDN). Традиционная сеть несет в себе несколько проблем, таких как зависимость от поставщика, сложность управления большой сетью, динамически меняющиеся политики пересылки и многое другое. Программно-конфигурируемая сеть – это новая стратегия, разработанная для решения таких проблем традиционной IP-сети, как высокий уровень сложности и неспособность своевременно адаптироваться к новым требованиям к качеству обслуживания. Фундаментальная идея, лежащая в основе SDN, по сравнению с традиционной сетевой парадигмой, заключается в создании горизонтально интегрированных систем путем разделения уровня управления и данных при обеспечении все более сложного набора абстракций. В последнее время появились различные инфраструк-туры QoS с поддержкой SDN, которые предлагают множество возможностей для реконфигурации сети и опре-деления политик на высоком уровне. Требования QoS для сетей 5G были определены на основе трех основных категорий сценариев использования: Extreme Mobile BroadBand (xMBB), Massive Machine Type Communications (mMTC) IoT/M2M-устройства и высоконадежная М2М-связь (сверхнадежная связь машинного типа – uMTC). В статье анализируется и исследуется QoS на основе метода протокола OpenFlow и QoS на основе метода контроллеров с открытым исходным кодом SDN в сети 5G. Обсуждаются различные архитектурные проблемы сети SDN контроллеров с открытым исходным кодом и исследуется их влияние на QoS. Описываются характеристики QoS, такие как задержка, доступность, надежность, джиттер и пропускная способность. Обсуждаются и сравниваются параметры QoS в сети 5G, которые определены мировыми лидерами в данной технологии.

The quality of service (QoS) in networking is the process of managing network resources to reduce packet loss and to lower network jitter and latency. QoS has been widely used in traditional network and can also be implemented in the 5G standard based on a software-defined network (SDN). A traditional network carries several challenges, such as vendor dependency, the complexity of managing a large network, dynamically changing forwarding policies, and more. Software-defined networking is a new networking strategy designed to address the challenges of a traditional IP network, such as high levels of complexity and inability to adapt to the new quality of service requirements in a timely manner. The fundamental idea behind SDNs compared to the conventional networking paradigm is the creation of horizontally integrated systems through the separation of the control and the data plane while providing an increasingly sophisticated set of abstractions. Recently, various SDN-enabled QoS frameworks have emerged that offer many possibilities for network reconfiguration and high-level definition of policies. QoS requirements for 5G networks have been defined on the basis of three main categories of use cases: extreme mobile broadband (xMBB), massive machine type communications (mMTC) IoT/M2M devices, and highly reliable М2М-communication (ultra-reliable machine-type communications – uMTC). This paper analyzes and surveys the QoS based on the openflow protocol method and QoS based on open-source SDN controllers method in 5G network. In addition, we discuss various architectural issues of open-source SDN controllers network and examine their impact on the QoS. Furthermore, we outline the characteristics of the QoS parameters such as latency, availability, reliability, jitter, and bandwidth in the 5G network. Finally, the article discusses and compares parameters of the QoS in 5G determined by world’s leaders in 5G technology.

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The authors declare that there are no conflicts of interest present.