A large scale interactive live teaching system over satellite and ground IP network

Abstract

Live teaching is one of ~w o busk e-Learning modes. In this paper; a novel interactive live teaching system namedSkyClass bused on the hybrid plaqorm o j 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, Iaxe scale communications and management, live lecture field recording and stream courseware generating uutomticaIly, are discussed Skyclus$ has already been implemented and applied on ihe plalporm of ASIA-2R satellite and Chinahiet and C E m E T (China Educational and Research Network) in the distance learningproject of west urea of China since Sept. 2003, it war proved that not only can Skyclasssupport large scale (more than 2500 remote sites) live lecture broadcasting and outside interaction, but also shows good extendibiIiV, reliabilip, and emy of use.