Title :
A large scale interactive live teaching system over satellite and ground IP network
Author :
Zheng, Qinghua ; Guo, Jiang
Author_Institution :
Dept. of Comput., Xi´´an Jiaotong Univ., China
Abstract :
Live teaching is one of two basic e-learning modes. In this paper, a novel interactive live teaching system named SkyClass based on the hybrid platform of satellite and ground IP network is modeled, SkyClass uses receive-only satellite links for live lecture broadcasting, and ground network to realize outside interaction. Three key issues of SkyClass, live lecture field broadcasting over the hybrid of satellite and ground IP, large scale communications and management, live lecture field recording and stream courseware generating automatically, are discussed SkyClass has already been implemented and applied on the platform of ASIA-2R satellite and ChinaNet and CERNET (China Educational and Research Network) in the distance learning project of west area of China since Sept. 2003, it was proved that not only can SkyClass support large scale (more than 2500 remote sites) live lecture broadcasting and outside interaction, but also shows good extendibility, reliability, and easy of use.
Keywords :
IP networks; Internet; broadcasting; courseware; distance learning; interactive systems; teaching; ASIA-2R satellite; CERNET; China Educational and Research Network; ChinaNet; SkyClass; distance learning; e-learning; ground IP network; large scale interactive live teaching system; live lecture field broadcasting; live lecture field recording; outside interaction; receive-only satellite link; satellite network; stream media courseware; Artificial satellites; Courseware; Disk recording; Education; Electronic learning; Hybrid power systems; IP networks; Large-scale systems; Project management; Satellite broadcasting;
Conference_Titel :
Computer Supported Cooperative Work in Design, 2005. Proceedings of the Ninth International Conference on
Print_ISBN :
1-84600-002-5
DOI :
10.1109/CSCWD.2005.194326
