Resource delayed release strategy for dynamic and fast end-to-end service provisioning in SDN-enabled OTN over WDM networks
Resource delayed release strategy for dynamic and fast end-to-end service provisioning in SDN-enabled OTN over WDM networks
复制标题
资源延迟释放策略，用于在 WDM 网络上支持 SDN 的 OTN 中动态快速提供端到端服务
DOI：
10.1109/ants.2017.8384137
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Shanguo Huang
中科院分区：
文献类型：
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作者：
Yu Zhou;B. Ramamurthy;B. Guo;Shanguo Huang
动态端到端服务供应对于满足各种用户和运营商需求至关重要，例如SDN支持的OTN over WDM网络中的带宽按需和动态带宽调整。在这种情况下，服务供应时间（SPT）是一个重要的指标，特别是在高度动态的流量场景。在本文中，我们提出了资源延迟释放策略，以提高SPT的性能，延迟释放的光信道时，该信道不再携带任何服务。仿真结果表明，在不同的流量场景下，使用RDR策略可以降低高达45 ~ 90%的SPT，并且还降低了服务请求的阻塞概率。
Dynamic end-to-end service provisioning is critical to satisfy various user and carrier requirements such as Bandwidth-on-Demand and Dynamic Bandwidth Adjustment in SDN-enabled OTN over WDM networks. In this context, Service Provisioning Time (SPT) is one of the important metrics, especially in highly dynamic traffic scenarios. In this paper, we propose the Resource Delayed Release strategy to improve the SPT performance by delaying the release of an optical channel when the channel no longer carries any services. Simulation results show that as much as 45∼90% of the SPT is reduced by using RDR strategy under different traffic scenarios, and the blocking probabilities of service requests are also reduced.