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Issue:
Efficient Virtual Network Embedding with Jointly Coordinated Node and Link Mapping
Author(s):
YU Hong-fang and GAO Xiu-jiao
Pages:
830
-
835
Year:
2012
Issue:
6
Journal:
Journal of University of Electronic Science and Technology of China
Keyword:
混合整数线性规划
;
网络虚拟化
;
松弛
;
虚拟网络映射
;
Abstract:
把虚拟网络高效地映射到一个公共的物理网络对网络虚拟化非常重要。该文提出了一种基于线性规划松弛的点边联合协调的高效虚拟网络映射算法。该算法首先松弛MILP并添加约束条件得到加强的线性松弛模型STRICT_LP,然后运用渐进启发式算法求解,得到映射解。仿真结果显示,该算法能够很好地实现虚拟网络点边协调映射,在成功率、网络开销、收益和网络收益开销比值4个方面优于D-ViNE和R-ViNE算法。
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