Collective Studies on Queuing Models for Information and Communication Network

我们研究和讨论了与信息和通信网络技术有关的排队系统的广泛主题，如信息网络中的通信协议、网络性能评估方法、网络可靠性评估等。在这两年中，我们与日本运筹学学会排队模型研究小组合作，每月召开约20次会议。每次都有20-30名居住在东京附近的会员参加会议，我们还每年举办一次为期3天的专题研讨会。共有130多名研究人员，包括来自大学和活跃公司的研究生。在这些研讨会上，ATM网络的建模和性能评估方法主要讨论了ATM网络的建模和性能评估方法，ATM网络将成为下一个ISDN时代的重要和主要的网络技术。特别是在综合业务数字网中加入突发性输入流的建模思想，随着信息通信网络时代的发展，不断涌现出一些新的有趣的问题和亟待解决的领域。

We studied and discussed broad topics of queuing systems concerning information and communication network technology, such as communication protocol in information network, performance evaluation methods for network, reliability evaluation for network and so on.We had about 20 monthly meetings for these two years co-operating with Research Group on Queuing Models in Operations Research Society of Japan. Every time, 20-30 members living near Tokyo area attended meetings.We also held the special 3-day long symposium on the theses once a year. Totally over 130 researchers including graduate school students from universities and active companies. Many topics were presented as seen in the formal report.At these symposiums, modeling and performance evaluation methods for ATM network, which would become an important and main network technology in coming ISDN ages, were mainly discussed. Specially, thoughts on modelling for input streams with bursty properties added to ISDN were studied by many researchers.I feel new interesting problems and fields which are requested to be solved urgently are continually born with the Information and Communication Network Ages developing.