RUI: Virtual Topologies for Multicast Communication in WDM Networks

本计画的目标是在以波分多工为基础的光网路中，发展有效的多播通讯演算法。将特别开展以下研究活动。首先，研究小组将致力于WDM模拟器，特别适合于基于WDM的组播应用。有效的具体组播树的建设问题将制定和他们的计算复杂性进行分析。 其次，本计画将包含更一般的多播问题，并寻求适当的解决方法，例如当多播群组中的接收者与接收者的集合改变时。最后，一部分的研究将致力于在异构网络中构建组播树的问题，不同的光节点架构，以及与现有的互联网环境中建立的光组播的容错和服务质量（QoS）的问题，并与应用级的要求。该项目将包括本科生的研究，因此将对他们的研究生教育的准备产生重大影响，以及它将被作为一种手段，创造认识和兴趣的本科生围绕光网络的问题进行。

This project aims at developing efficient algorithms for multicast communication within the optical networks based on Wavelength Division Multiplexing (WDM). The following research activities will be particularly pursued. First, the research team will work on the WDM simulators particularly suitable for multicast applications based on WDM. Effi-cient specific multicast tree construction problems will be formulated and their computa-tional complexity will be analyzed. Second, this project will include more general multi-cast problems and seek the appropriate solutions, such as when the set of senders and re-ceivers in the multicast group vary. Finally, a part of the research will be devoted to the problem of constructing multicast trees in heterogeneous networks with different optical node architectures as well as the fault-tolerance and Quality-of-Service (QoS) problems related to optical multicast built in existing Internet environment and with application-level requirements. This project will include undergraduate students in research and will thus have substantial impact on their preparation for graduate education as well as it will be conducted as means of creating awareness and interest among undergraduate students on the issues surrounding optical networks.