基于距离自适应和有效共享路径感知的光疏导方法

刘焕淋; 岁蒙; 徐一帆; 陈勇; 张盛峰

doi:10.11999/JEIT141442

基于距离自适应和有效共享路径感知的光疏导方法

doi: 10.11999/JEIT141442

1.
(重庆邮电大学光纤通信技术重点实验室重庆 400065) ②(重庆邮电大学自动化学院重庆 400065)

基金项目:

重庆市教委自然科学基金(KJ1140421)，重庆市科委自然基金(2013jcyjA40052, 2011jjA1361)和国家自然科学基金(61275077, 61371096)

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- 文章访问数: 1211
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- 被引次数: 0
出版历程
- 收稿日期: 2014-11-20
- 修回日期: 2015-04-15
- 刊出日期: 2015-08-19

Method of Optical Grooming for Distance-adaptive and Effective Sharing Path-aware

1.
(Key Laboratory of Optical Fiber Communication, Chongqing University of Posts and Telecommunications,Chongqing 400065, China)
2.
(School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China)

摘要

摘要: 针对灵活网格光网络中如何节约转发器与频谱资源的问题，该文研究了多点到多点组播业务的光路环路由机制，提出一种基于距离自适应和有效共享路径感知的光疏导方法。通过设计一种基于距离自适应的预处理机制，该疏导方法能根据业务成员节点的分布特点和距离自适应准则灵活地为业务构建光路环；在路由与频谱分配阶段，该疏导方法通过构造一个面向光疏导的业务决策矩阵和一个优先调度向量，将业务疏导到与当前业务具有有效共享路径最多的已路由业务上，并优先分配所需的频谱空间以提高光疏导的成功率，实现节约转发器与频谱资源的目的。仿真结果表明，该文提出的光疏导方法可以有效地减少业务消耗的转发器数目和子载波数目。
- 灵活网格光网络 /
- 光路环 /
- 光疏导 /
- 共享路径感知
Abstract: In order to address the problem of reducing the resources of transponder and spectrum in flexible grid optical networks, a lightpath circle mechanism is studied for many-to-many multicast requests, and a method of optical grooming is proposed based on distance-adaptive and effective sharing path-aware. By designing a strategy of traffic pre-processing based on distance-adaptive, a lightpath circle is constructed according to the distribution characteristics?of member nodes and the distance-adaptive criterion in the proposed method. In the process of routing and spectrum allocation, by constructing a decision matrix oriented optical grooming and a priority scheduling vector, the multicast request is groomed into the established traffic with the highest effective sharing links. Moreover, the appropriate spectrum resources are allocated for the groomed requests to increase the success rates of grooming and to save the resources of transponder and spectrum. Simulation results show that the proposed method can significantly reduce the number of traffic consumed transponders and sub-carriers.
- Flexible grid optical networks /
- Lightpath circle /
- Optical traffic grooming /
- Sharing path-aware

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参考文献(21)

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