可重构网络体系下的组播机制  

An Aggregated Multicast Scheme in the Reconfigurable Networks

作　　者：黄恺翔 陈越 贾洪勇 兰巨龙[2] 

机构地区：[1]数学工程与先进计算国家重点实验室,郑州450001 [2]国家数字交换系统工程技术研究中心,郑州450001

出　　处：《北京邮电大学学报》2015年第5期66-70,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家重点基础研究发展计划(973计划)项目(2012CB315900)

摘　　要：提出一种在可重构网络体系下的聚合组播机制.采用网络编码技术可提高组播通信的传输性能,在保障聚合组播能减少路由状态、提高可扩展性的前提下,减少聚合组播的带宽浪费.利用可重构网络的逻辑上集中控制和全局网络拓扑视角,优化网络编码与聚合组播算法.通过随机网络拓扑模型下的性能仿真实验分析,与传统的聚合组播相比,该机制可在组播状态和带宽浪费之间达到较好的均衡.An aggregated multicast scheme in the reconfigurable networks was presented. The aggregated multicast can reduce the states effectively and improve the scalability,but it brings out the waste of the bandwidth. The network coding can improve the transmission performance of multicast. In order to combine the advantages of both technologies,a multicast aggregation algorithm was proposed based on network coding in the reconfigurable. Benefited from centralized control logic and global network view in reconfigurable networks,it can reduce multicast states and waste of the bandwidth. Simulation for the random network topology model shows that,compared with the traditional multicast aggregation algorithm,it can achieve a better balance between the state and the multicast bandwidth waste.

关 键 词：聚合组播 网络编码 可重构网络 带宽浪费 

分 类 号：TN929.53[电子电信—通信与信息系统]