RUI: Virtual Topologies for Multicast Communication in WDM Networks

本项目旨在开发基于波分复用（WDM）的光网络中有效的多播通信算法。将特别进行下列研究活动。首先，研究小组将研究特别适合于基于WDM的多播应用的WDM模拟器。提出了高效的特定组播树构造问题，并对其计算复杂度进行了分析。其次，本项目将包括更普遍的多播问题，并寻求适当的解决方案，例如当多播组中的发送方和接收方集合不同时。最后，研究了在不同光节点架构的异构网络中构建组播树的问题，以及在现有互联网环境下基于应用层需求构建的光组播的容错和服务质量问题。该项目将包括本科生的研究，因此将对他们为研究生教育做准备产生重大影响，并将作为一种手段，使本科生对光网络周围的问题产生认识和兴趣。

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.