基于网络编码的多播路由算法性能分析  

Performance Analysis of Multicast Routing Algorithm Based on Network Coding

作　　者：王静[1] 刘景美[1] 王新梅[1] 

机构地区：[1]西安电子科技大学综合业务网国家重点实验室,西安710071

出　　处：《电子与信息学报》2008年第11期2605-2608,共4页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60502046);华为高校科技基金(YJCB2006001RE);国家青年科学基金(60503010);国家863计划项目(2007AA01Z215)资助课题

摘　　要：多播传输是目前通信系统中的一项关键技术,可以将相同的信息同时传向多个接收节点。该文提出一种基于网络编码的新的多播路由算法,利用约简网络搜索源节点到各接收节点的路径族。仿真结果表明,该算法在资源消耗和负载均衡方面较传统的多播路由算法有更好的表现,同时性能也更接近最小费用多播算法。借助数学工具分析表明该算法具有较低的计算复杂度。Multicast transmission is a key technology of the present communication system, which can send the same information simultaneously to several receivers. A new multicast routing algorithm based on network coding is proposed in this paper, searching the routing groups from source to each receiver by using reduction network. Simulation results show that, compared with traditional multicast routing algorithms, performances of the routing algorithm are improved at a great extent in resource consumption and load balance, and are closer to minimum-cost multicast algorithm. Then, mathematic analysis indicates that the algorithm has lower computational complexity.

关 键 词：网络编码 路由算法 约简网络 计算复杂度 

分 类 号：TN915[电子电信—通信与信息系统]