论文标题
关注我的云：云服务关注移动用户
Follow-Me Cloud: When Cloud Services Follow Mobile Users
论文作者
论文摘要
3GPP LTE移动网络体系结构的云化趋势和联合云基础架构的出现要求替代服务交付策略，以改善用户体验和有效的资源利用。我们提出了针对此环境量身定制的设计Collow-Me Cloud（FMC），但具有更广泛的适用性，它允许移动用户始终通过最佳数据锚定和移动性网关连接，而基于云的服务则跟随它们，并通过云基础设施内的最佳服务点进行交付。 FMC将基于Markov-Decision-Process的算法应用于成本效益，性能优化的服务迁移决策，而两种替代方案可确保基于软件定义的网络技术或定位器/标识者/标识符分离协议，以确保提供服务连续性和无干扰操作。我们的FMC分析模型的数值结果，以及我们开发的两个替代FMC实现的测试式实验，在定量和定性上证明了它可以带来的优势。
The trend towards the cloudification of the 3GPP LTE mobile network architecture and the emergence of federated cloud infrastructures call for alternative service delivery strategies for improved user experience and efficient resource utilization. We propose Follow-Me Cloud (FMC), a design tailored to this environment, but with a broader applicability, which allows mobile users to always be connected via the optimal data anchor and mobility gateways, while cloud-based services follow them and are delivered via the optimal service point inside the cloud infrastructure. FMC applies a Markov-Decision-Process-based algorithm for cost-effective, performance-optimized service migration decisions, while two alternative schemes to ensure service continuity and disruption-free operation are proposed, based on either Software Defined Networking technologies or the Locator/Identifier Separation Protocol. Numerical results from our analytic model for FMC, as well as testbed experiments with the two alternative FMC implementations we have developed, demonstrate quantitatively and qualitatively the advantages it can bring about.
