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Optimum Architecture of ATM Switch with Large Capacity in the Broadband ISDN

宽带ISDN大容量ATM交换机的优化体系结构

基本信息

批准号：
04650290
负责人：
OIE Yuji
金额：
$ 1.28万
依托单位：
Kyushu Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1993
项目状态：
已结题

项目摘要

In this study, we have focused on lightwave networks which are expected to accommodate a large amount of traffic, and analyzed their performance. The results obtained through the research are summarized as follows.(1) Improvement of lightwave newtork RookNetRookNet we proposed last year has achieved a maximum throughput of about 0.4. In the study, we have improved its maximum throughput to about 0.8 by using some different protocol like Selective-repeat Protocol instead of a Stop-and-wait like protocol.(2) On a scalability of RookNetIn RookNet treated so far, each node needs a number of 2(N - 1) receivers (or filters) in order to construct a network of N x N nodes. We have proposed RookNet with TDMA scheme in which a network of N X N can be extended to that of 2(N = 1) X 2(N -1) while the number of receivers per node being fixed at 2(N - 1). We have shown that the total maximum throughput over a network increases as the number of nodes increases, whereas the maximum throughput per node decreases.(3) On the optimum network configurationConfiguration of lightwave networks can be logically canged by retuning the receivers and transmitters. Given the amount of traffic transmitted between a pair of nodes, we are developing the algorithm to obtain the optimum configuration that achieves the highest maximum throughput.

在这项研究中，我们专注于光波网络，预计将容纳大量的流量，并分析其性能。通过研究获得的结果总结如下。(1)我们去年提出的光波newtork RookNetRookNet的改进已经实现了约0.4的最大吞吐量。在这项研究中，我们已经提高了它的最大吞吐量约0.8，通过使用一些不同的协议，如选择性重复协议，而不是停止和等待一样的协议。(2)在到目前为止所处理的RookNet的可扩展性上，每个节点需要2（N - 1）个接收器（或过滤器），以便构建N × N节点的网络。本文提出了一种基于TDMA的RookNet网络结构，在每个节点的接收机数目固定为2（N-1）的情况下，可以将一个N × N的网络扩展为2（N = 1）× 2（N-1）的网络。我们已经证明，网络上的总最大吞吐量随着节点数量的增加而增加，而每个节点的最大吞吐量则会减少。(3)关于最佳网络配置通过重新调谐接收机和发射机，可以合理地改变光波网络的配置。鉴于一对节点之间传输的流量，我们正在开发的算法，以获得最佳的配置，实现最高的最大吞吐量。