Time Constrained Service-Aware Migration of Virtualized Services for Mobile Edge Computing
Time Constrained Service-Aware Migration of Virtualized Services for Mobile Edge Computing
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DOI：
10.1109/itc30.2018.00017
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发表时间：
2018-09
期刊：
影响因子：
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通讯作者：
Peiyue Zhao;G. Dán
中科院分区：
文献类型：
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作者：
Peiyue Zhao;G. Dán
我们考虑在移动边缘计算(MEC)中迁移虚拟服务(VSS)，以便于服务器维护、移动性下的负载均衡、提高能源效率和资源利用率以及事件响应。我们考虑了一组必须从源位置迁移到目标位置的VSS，同时尽可能地保持服务连续性。将VS迁移问题描述为一个整数规划问题，并对其复杂性进行了分析。我们提出了一种高效的迭代算法来计算VSS应该何时以及以什么顺序在MEC节点之间迁移。我们从总体服务价值、效率和可扩展性方面对建议的解决方案进行评估。大量的模拟实验表明，我们的算法在计算上是有效的，并且性能接近最优。
We consider the migration of virtualized services (VSs) in Mobile Edge Computing (MEC), so as to facilitate server maintenance, load balancing under mobility, improved energy efficiency and resource utilization, and incident response. We consider a set of VSs that has to be migrated from a source placement to a target placement, while maintaining service continuity as much as possible. We formulate the VS migration problem as an integer programming problem, and analyze its complexity. We propose an efficient iterative algorithm for computing when and in what order the VSs shall be migrated among the MEC nodes. We evaluate the proposed solution in terms of total service value, efficiency, and scalability. Extensive simulations show that our algorithm is computationally effective, and performs close to optimal.