QOS (Quality of Service) parameter definitions are the basis of further QOS control.But QOS parameters defined by orgallizations such as ISO and ITU are incoherent and incompatible. It leads to the inefficiency of QOS...QOS (Quality of Service) parameter definitions are the basis of further QOS control.But QOS parameters defined by orgallizations such as ISO and ITU are incoherent and incompatible. It leads to the inefficiency of QOS controls. Based on the analysis of QOS parameters defined by ISO and ITU, this paper first promotes Minimum QOS Parameter Set in transport layer. It demonstrates that the parameters defined by ISO and ITU can be represented by parameters or a combination of parameters of the Set. The paper also expounds that the Set is open and manageable and it can be the potential unified base for QOS parameters.展开更多
针对异构融合网络中不同网络的Qo S和映射问题,解决分类和映射方法是提出Qo S参数映射模型。在充分研究现有异构网Qo S参数映射方法的基础上,提出了Qo S参数映射三维模型(Three-dimensional Model for Qo S Parameter Mapping,Qo S-TMP...针对异构融合网络中不同网络的Qo S和映射问题,解决分类和映射方法是提出Qo S参数映射模型。在充分研究现有异构网Qo S参数映射方法的基础上,提出了Qo S参数映射三维模型(Three-dimensional Model for Qo S Parameter Mapping,Qo S-TMPM),模型采用颗粒度适中、区分度较大的Qo S分类关键参数进行搭建。同时,基于Qo S参数映射三维模型的Qo S参数映射方法能顺利地完成异构网络间的Qo S参数映射,仿真结果表明Qo S参数模型和参数映射方法能改善Qo S保证服务,从而提高用户的业务体验质量。展开更多
覆盖网(Overlay)虚拟化能有效分离网络应用服务与底层网络基础设施,提升服务质量和用户体验,设计了一种利用多目标优化(multi-objective optimization,简称MOO)的通用覆盖网(general service overlay network,简称GSON)网拓扑构建算法(M...覆盖网(Overlay)虚拟化能有效分离网络应用服务与底层网络基础设施,提升服务质量和用户体验,设计了一种利用多目标优化(multi-objective optimization,简称MOO)的通用覆盖网(general service overlay network,简称GSON)网拓扑构建算法(MOO-GSON)。该算法利用多目标优化模型提出了以服务节点和物理链路重用为约束,从而提高了虚拟拓扑与物理网络匹配度,最小化虚拟链路代价。降低了网络总体开销。采用随机网络拓扑进行试验仿真的结果表明,在满足各类约束的条件下,本算法能有效地优化时间和成本。展开更多
文摘QOS (Quality of Service) parameter definitions are the basis of further QOS control.But QOS parameters defined by orgallizations such as ISO and ITU are incoherent and incompatible. It leads to the inefficiency of QOS controls. Based on the analysis of QOS parameters defined by ISO and ITU, this paper first promotes Minimum QOS Parameter Set in transport layer. It demonstrates that the parameters defined by ISO and ITU can be represented by parameters or a combination of parameters of the Set. The paper also expounds that the Set is open and manageable and it can be the potential unified base for QOS parameters.
文摘覆盖网(Overlay)虚拟化能有效分离网络应用服务与底层网络基础设施,提升服务质量和用户体验,设计了一种利用多目标优化(multi-objective optimization,简称MOO)的通用覆盖网(general service overlay network,简称GSON)网拓扑构建算法(MOO-GSON)。该算法利用多目标优化模型提出了以服务节点和物理链路重用为约束,从而提高了虚拟拓扑与物理网络匹配度,最小化虚拟链路代价。降低了网络总体开销。采用随机网络拓扑进行试验仿真的结果表明,在满足各类约束的条件下,本算法能有效地优化时间和成本。