Title :
IALM: an Interaction-enable Application Layer Multicast Protocol for Live Teaching
Author :
Zhang, Weizhan ; Zheng, Qinghua ; Ying, Hao ; Liu, Wenjiang ; Che, Yi
Author_Institution :
Xi´´an Jiaotong Univ., Xi´´an
Abstract :
In this paper, an interaction-enable application layer multicast protocol is introduced for a scalable live teaching system. With a simple and effective interaction-enable algorithm, the proposed protocol abates the additional application layer relay time to enable the video and audio interactive behavior, which takes an important part in a collaborative learning scenario. Besides, the peculiar join request distribution of the learner in live teaching is also considered, and a new client admission algorithm is adopted in the protocol to enhance the judgment efficiency. Based on the above approaches, a real live teaching system is realized.
Keywords :
computer aided instruction; groupware; interactive systems; multicast protocols; teaching; audio interactive behavior; client admission algorithm; collaborative learning scenario; interaction-enable application layer multicast protocol; live teaching; video interactive behavior; Application software; Centralized control; Collaborative work; Delay effects; Education; Multicast algorithms; Multicast protocols; Network servers; Peer to peer computing; Streaming media; Application Layer Multicast; Data Transmit Unit; Interaction; Live Teaching;
Conference_Titel :
Computer Supported Cooperative Work in Design, 2007. CSCWD 2007. 11th International Conference on
Conference_Location :
Melbourne, Vic.
Print_ISBN :
1-4244-0963-2
Electronic_ISBN :
1-4244-0963-2
DOI :
10.1109/CSCWD.2007.4281576
