WDM光网络中多播业务量疏导方法分析

Analysis of multicast traffic grooming algorithms in WDM mesh networks

在光层多播树路由中疏导低速业务实现阻塞率降低和吞吐量提高是光网络比较复杂的联合优化问题。分析了WDM(wave-length division multiplex)网络中多播业务量疏导问题的研究方法和成果,分析比较了静态多播业务和动态多播业务的疏导方法,并讨论了各种多播业务疏导方法性能、特点及存在的问题,最后总结了关于动态多播疏导的未来研究思路。

Grooming the low-speed traffic to reduce the blocking probability and improve throughput in optical layer multicast routing tree is a more complex joint optimization problem.The paper analyzes the methods and results of the optical multicast traffic grooming problem in WDM networks.Also,the multicast static traffic and dynamic traffic grooming algorithms are analyzed and compared in the paper respectively.Furthermore,the authors discuss the performance,characteristics and the existing problems of those algorithms for optical multicast traffic grooming.Finally,we summarize the future research ideas about the methods of dynamic multicast traffic grooming.