摘要
在保证虚拟网络可靠性需求的条件下以最小化映射成本为目标,研究了可靠虚拟基础设施映射.在RVIM算法的基础上提出了Improved_RVIM算法,算法中一些工作虚拟节点适当地映射在相同的设施节点上,可以在不增加备份计算资源的条件下节省通信成本,降低总映射成本.仿真结果表明Improved-RVIM算法相比其它算法成本更低.
The reliable Virtual Infrastructure mapping problem was studied aiming to minimize the total mapping cost while guaranteeing the desired Virtual Infrastructure reliability.The Improved_RVIM algorithm to address the problem was presented.In Improved_RVIM,some primary Virtual Infrastructure nodes are mapped together in a cost efficient manner,so that the bandwidth cost can be reduced while the required backup computing resources are not increased.Then the total mapping cost can be reduced.The simulation results show that the Improved_RVIM algorithm can reduce the total mapping cost compared to other algorithms.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2014年第S1期95-101,共7页
Acta Photonica Sinica
基金
The National Grand Fundamental Research 973 Program of China(No.2013CB329103)
the Natural Science Foundation of China(Nos.61271171,61001084)
Sichuan Youth Science and Technology Fund(No.2012JQ0020)
Program for New Century Excellent Talents in University(No.NCET-11-0058)
the Fundamental Research Funds for the Central Universities(Nos.ZYGX2010J002,ZYGX2012J004,ZYGX2010J009)
Guangdong Science and Technology Project(Nos.2012B090500003,2012B091000163,2012556031)
Science and Technology Research Projects of Chongqing Municipal Education Commission under Grant(No.KJ120523)
