| 基于网络编码的多源多核点光组播路由算法 |
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| 引用本文： | 黄胜,王琰,刘焕淋,秦亮.基于网络编码的多源多核点光组播路由算法[J].重庆邮电大学学报(自然科学版),2014,26(2):143-149. |
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| 作者姓名： | 黄胜 王琰 刘焕淋 秦亮 |
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| 作者单位： | 重庆邮电大学 光纤通信技术重点实验室 重庆 400065;重庆邮电大学 光纤通信技术重点实验室 重庆 400065;重庆邮电大学 光纤通信技术重点实验室 重庆 400065;重庆邮电大学 光纤通信技术重点实验室 重庆 400065 |
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| 基金项目： | 国家自然科学基金（61275077，61071117，61171158）；重庆市自然科学基金（CSTC2013JCYJA40052，2010BB2409，CSTC2012jjA40060） |
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| 摘 要： | 针对现有多源组播网络编码路由方法的链路代价、波长消耗等性能受目的节点数目变化影响过大的问题，提出一种基于网络编码的多核组播路由算法。该算法通过选取多个核点构造编码子图，并将为目的节点选择的核心节点设为解码节点，以减小目的节点数量对编码子图大小的影响。结果表明，在目的节点较多的多源网络中，该算法能有效地减少网络总链路代价和波长资源消耗。
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| 关 键 词： | 多源光网络 网络编码 组播路由 多核共享树 链路分离路径 |
| 收稿时间： | 8/7/2013 12:00:00 AM |
| 修稿时间： | 2014/2/25 0:00:00 |
Multi-source multi-core routing algorithm based on network coding in optical multicast network |
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| HUANG Sheng,WANG Yan,LIU Huanlin and QIN Liang.Multi-source multi-core routing algorithm based on network coding in optical multicast network[J].Journal of Chongqing University of Posts and Telecommunications,2014,26(2):143-149. |
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| Authors: | HUANG Sheng WANG Yan LIU Huanlin and QIN Liang |
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| Institution: | Key Lab of Optical Fiber Communication Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, P.R.China;Key Lab of Optical Fiber Communication Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, P.R.China;Key Lab of Optical Fiber Communication Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, P.R.China;Key Lab of Optical Fiber Communication Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, P.R.China |
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| Abstract: | The link cost and wavelength resource consumption of the current multi-source multicast routing methods are easily influenced by the variety of the number of destination nodes. To solve this problem, the multi-core multicast routing algorithm based on network coding is proposed. By selecting the multiple core nodes in the network, the algorithm constructs a network coding sub-graph for multicast routing. Then the core nodes selected according to the destination nodes are set as decoding nodes so as to reduce the influence of the number of destination nodes on coding sub-graph. The result shows that the algorithm can reduce the total link cost and wavelength resource consumption effectively in the multi-source network containing lots of destination nodes. |
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