Guaranteed Bit Rate Traffic Prioritisation and Isolation in Multi-tenant Radio Access Networks

Irene Vilá, O. Sallent, A. Umbert, J. Pérez-Romero
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引用次数: 6

Abstract

Network slicing is a key feature of forthcoming 5G systems to facilitate the partitioning of the network into multiple logical networks customised according to different operation and application needs. Network slicing allows the materialisation of multi-tenant networks, in which the same infrastructure is shared among multiple communication providers, each one using a different slice. The support of multi-tenancy through slicing in the Radio Access Network (RAN) is particularly challenging because it involves the configuration and operation of multiple and diverse RAN behaviour over a common pool of radio resources while guaranteeing a certain Quality of Service (QoS) and isolation to each of the slices. This paper presents a Markovian approach to model different QoS aware Admission Control (AC) policies in a multi-tenant scenario with Guaranteed Bit Rate (GBR) services. From the analytical model, different metrics are defined to later analyse the effect of AC mechanisms on the performance achieved in various scenarios. Results show the impact of priorities for services of different tenants and isolation between tenants when different AC polices are adopted.
多租户无线接入网中的保证比特率流量优先级和隔离
网络切片是即将到来的5G系统的一个关键特性,可以根据不同的操作和应用需求,将网络划分为多个逻辑网络。网络切片允许实现多租户网络,其中相同的基础设施在多个通信提供者之间共享,每个通信提供者使用不同的切片。通过无线接入网(RAN)中的切片来支持多租户尤其具有挑战性,因为它涉及到在公共无线电资源池上配置和操作多个和不同的RAN行为,同时保证一定的服务质量(QoS)和每个切片的隔离。本文提出了一种马尔可夫方法来模拟具有保证比特率(GBR)服务的多租户场景中不同的QoS感知准入控制(AC)策略。从分析模型中,定义了不同的度量,以便稍后分析交流机制对各种场景中实现的性能的影响。结果显示了采用不同的AC策略时,不同租户的业务优先级和租户间隔离的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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