Virtualization-Based Scaling Methods for Stateful Cellular Network Nodes Using Elastic Core Architecture
Virtualization-Based Scaling Methods for Stateful Cellular Network Nodes Using Elastic Core Architecture
复制标题
使用弹性核心架构的有状态蜂窝网络节点的基于虚拟化的扩展方法
DOI：
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发表时间：
2014
期刊：
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通讯作者：
T. Shimizu
中科院分区：
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作者：
Yusuke Takano;Ashiq Khan;M. Tamura;Shigeru Iwashina;T. Shimizu
本文描述了一种新的方案，该方案能够在不中断会话连续性的情况下扩展蜂窝节点应用。利用该方案，在虚拟环境中可能的扩展操作期间维护节点应用的状态，包括用户设备(UE)状态和传输协议状态。设计了演进分组核心网(EPC)的移动性管理实体(MME)原型，通过在实验室试验台上进行的经验评估，展示了所提出的方案与弹性核心架构(ECA)如何实现会话连续性。结果表明，我们提出的方案可以实现基于虚拟化的有状态蜂窝网络节点应用的扩展，而会话中断特性可以忽略不计。
This paper describes a novel scheme which enables scaling of cellular node applications without disrupting session continuity. With this scheme, states of node applications, including User Equipment (UE) states and transport protocol states, are maintained during scaling operations that are possible in a virtualized environment. A prototype of Mobility Management Entity (MME) of Evolved Packet Core (EPC) was designed to show how the proposed scheme together with the Elastic Core Architecture (ECA) can achieve the session continuity by means of empirical evaluations performed in a laboratory test bed. The results show that our proposed scheme can realize virtualization-based scaling of stateful cellular network node applications with negligible session interruption characteristics.