Interactive Multimedia Education at Distance over Asia Using High Speed Internet Satellite

在本研究方案中，我们提出了以下新的研究框架：（1）呼吁消除亚洲教育中的数字鸿沟;（B）建立21^世纪的新教育体系<st>;（3）促进亚洲大学网络的有效构建。（1）构建WIND仿真卫星网络系统我们构建了一个WIND仿真网络系统，以了解网格式和频段共享环境下e-Learning平台的需求。（2）构建多点远程学习系统在（1）中的卫星网络系统下，通过实现KDDI开发的“Sky-Cast Lesson”远程学习IP应用软件，构建多点远程学习系统。在卫星网络系统下使用IP应用时，由于卫星链路造成的时延或不同站点之间的负载不平衡，很难获得统一的网络资源和质量，因此，由于卫星网络系统的特性，将出现许多问题。Sky-cast课程以卫星网络系统的形式实现，可以提供一个稳定的试点实验平台，在此系统环境下，构建了教育门户系统LMS（Learning Management System），并在该系统下开发了部分课件。于本财政年度，我们亦在泰国及马来西亚进行天线建设试验并取得成功。我们还成功进行了泰国/马来西亚<->日本和日本<->泰国/马来西亚流媒体的网络测试。

In the present research proposal, we propose the following new frameworks to a, call for the elimination of Asian digital divide in educations ; and b, establish new educational system for 21^<st> century, c, contribute to the efficient construction of Asian university network.(1)Building satellite network system emulating WINDSWe have build a WIND-emulation network system in order to understand the requirements of e-learning platform under both mesh-type and band-sharing environments.(2)Building multi-points distant learning systemUnder the satellite network system in (1), we construct a multi-point distant learning system by implementing distant learning IP application software entitled"Sky-Cast Lesson"developed by KDDI.When we use IP application under satellite network system, due to the time-delay caused by satellite link or the load-imbalance between different sites, it is difficult to obtain a uniform network resource and qualities and thus numerous problems will occur by the characteristics of satellite network systems. Sky-cast lesson can provide a stable pilot experimental platform with ease because it is implemented as the satellite network system.In addition to this system environment, the LMS (Learning Management System) that is the portal system for education are constructed and we develop some courseware under the system. This fiscal year, we also experimented and succeed in the antennas construction in Thai and Malaysia. We also succeeded in network tests of Thai/Malaysia<-> Japan, and Japan<->Thai/Malaysia streaming.