Joint Spectrum and IT Resource Allocation for Efficient VNF Service Chaining in Inter-Datacenter Elastic Optical Networks

被引：104
|
作者：
Fang, Wenjian [1 ]
Zeng, Menglu [1 ]
Liu, Xiahe [1 ]
Lu, Wei [1 ]
Zhu, Zuqing [1 ]
机构：
[1] Univ Sci & Technol China, Sch Informat Sci & Technol, Hefei 230027, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2016年 / 20卷 / 08期
关键词：
Network function virtualization (NFV); service chaining; datacenter (DC); elastic optical networks (EONs); DEFRAGMENTATION;
D O I：
10.1109/LCOMM.2016.2580151
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
We study how to allocate spectrum and IT resources jointly for realizing efficient virtual network function (VNF) service chaining in inter-datacenter elastic optical networks. We first formulate an integer linear programming model to solve the problem exactly, and then a longest common subsequence-based heuristic is proposed. The simulation results indicate that the proposed algorithms can reuse the deployed VNFs efficiently and arrange the spectrum utilization in a much more load-balanced manner.
引用
收藏
页码：1539 / 1542
页数：4
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