基于MLAG的三层码分多粒度光交换系统的性能研究  

MLAG-based research on the performance of a three layer multi-granularity optical cross connection system

作　　者：王玉宝[1] 任艳菲 孟莹 白健[2] Wang Yubao;Ren Yanfei;Meng Ying;Bai Jian(School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004;Teaching and Research Section, Basic Courses Teaching Department, Hebei Vocational ＆ Technical College of Building Materials, Qinhuangdao 066004)

机构地区：[1]燕山大学信息与科学工程学院,秦皇岛066004 [2]河北建材职业技术学院基础社科教学部,秦皇岛066004

出　　处：《高技术通讯》2017年第8期727-734,共8页Chinese High Technology Letters

基　　金：河北省自然科学基金(F2015203204);河北省高等学校科学技术(ZD2014024)资助项目

摘　　要：在波长交换的基础上,引入光码交换,并基于光码分复用(OCDM)建立了一种三层多粒度光交叉联接(MG-OXC)系统,并给出了一种新的业务疏导算法。该体系结构能够很好地改善业务疏导,减少使用波长数量,节省消耗端口数目,因此它可以简化路由设置,优化节点业务疏导的灵活性,提高系统性能。简要介绍了三层多粒度光交换体系的结构,并在端口节省方面进行了比较。通过在多路分层辅助图表(MLAG)上对交换结构网络模型和业务疏导链路建立的分析,以及对阻塞率和吞吐量的仿真,展现了该体系的良好性能。In this work, optical code switching is introduced based on wavelength switching, then a three-layer muhigranularity optical cross connection （MG-OXC） system is constructed on the basis of optical code division multiplexing （OCDM）, and a new traffic grooming algorithm is presented. The proposed architecture can improve the flexibility of traffic grooming, reduce the number of wavelengths used and save the number of consuming ports, hence, it can simplify routing device, effectively improve the flexibility of traffic grooming between nodes and enhance the performance of the system. The structure of the three-layer MG-OXC system is briefly interpreted and the comparison of saving ports is given. The good performance of the system is showed through the analysis of the exchange structure network model and the establishment of traffic grooming link on the multicast layered auxiliary graph （ MLAG）, and the simulating of the blocking rate and the throughput

关 键 词：光码分复用(OCDM) 多粒度光交叉联接(MG-OXC) 多路分层辅助图表(MLAG) 阻塞率 吞吐量 

分 类 号：TN929.1[电子电信—通信与信息系统]