适合全光组播网络的网络编码技术研究  

Research on network coding technique appropriate for all-optical multicast networks

作　　者：曲志坚[1] 谭晓 张先伟[1] 石少俭[1] 曹雁锋[1] 赵明波[1] 

机构地区：[1]山东理工大学计算机科学与技术学院,山东淄博255049 [2]山东水利技师学院信息技术系,山东淄博255130

出　　处：《光通信研究》2014年第4期5-7,27,共4页Study on Optical Communications

基　　金：山东省博士基金资助项目(BS2013DX032)

摘　　要：传统的网络编解码算法需要进行线性运算,只适合在电域中实现。而当前全光器件的发展已经能够实现逻辑运算和移位操作。为了将网络编码引入到全光组播网络当中,文章研究了生成网络编码组播树的算法,以及适合于光网络编码的编码向量选取方法,并对所提出的算法进行了仿真分析。结果表明,将网络编码应用于全光组播中能够显著提高组播性能。Owing to the need for performing linear operation,the traditional network coding/decoding algorithms are only suitable to be applied in the electric domain,while thanks to the development of the current all-optical devices,it is possible to realize logic calculus and shift operations.In order to introduce network coding into all-optical multicast networks,this paper studies the algorithms for generating network coding multicast trees and the methods for selecting the coding vector appropriate for optical network coding and simulates and analyzes the presented algorithm.The results indicate that the application of network coding to all-optical multicast can significantly improve the multicast performances.

关 键 词：网络编码 编码向量 组播树 全光组播 

分 类 号：TN929[电子电信—通信与信息系统]