Internet Technologies and Infrastructure for Asia-Wide Distance Education

2007 International Symposium on Applications and the Internet Pub Date : 2007-01-15 DOI:10.1109/SAINT.2007.15

Patcharee Basu, A. Thamrin, Shoko Mikawa, K. Okawa, J. Murai

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引用次数: 12

Abstract

SOI Asia project aims at Asia-wide distance education development with its design emphasizing on new model of network technologies that provides wide-coverage high-quality network to support high-quality distance education instead of relying on the available Internet connectivity with inadequate quality. A 13-Mbps unidirectional broadcast satellite covers Asia region enabling lecture sharing among student sites. IPv6 multicast overlay network is established by UDLR and IPv6 tunnel technologies to create a virtual network connecting lecturer-site and student-sites on top of network heterogeneity. Bandwidth optimization and scalability are achieved by IPv6 multicast. QoS using policy routing and ALTQ utilizes and manages bandwidth to ensure high quality lectures. Experiment results show that SOI Asia environment delivers better quality streams with stable rate, high correlation, low data loss and jitter compared to the available Internet connectivity. These design aspects, technology model and experimental results can be the considerations of future region-wide distance education development

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亚洲远程教育的互联网技术和基础设施

SOI亚洲项目着眼于全亚洲远程教育的发展，其设计强调网络技术的新模式，提供广泛覆盖的高质量网络，以支持高质量的远程教育，而不是依赖现有的互联网连接，但质量不高。一个13mbps的单向广播卫星覆盖亚洲地区，使学生之间的讲座共享。利用UDLR技术和IPv6隧道技术建立IPv6组播覆盖网络，在网络异构的基础上建立一个连接教师站点和学生站点的虚拟网络。IPv6组播实现了带宽优化和可扩展性。QoS使用策略路由和ALTQ利用和管理带宽，以确保高质量的讲座。实验结果表明，与现有的Internet连接相比，SOI Asia环境提供了更高质量的流，具有稳定的速率、高相关性、低数据丢失和抖动。这些设计方面、技术模型和实验结果可以作为未来区域性远程教育发展的参考

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2007 International Symposium on Applications and the Internet

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