An Interactive Telelecture System with Hybrid ATM/IP Networking

Currently, there is much debate whether ATM (Asynchronous Transfer Mode) or IP (Internet Protocol) is the better internetworking technology for multiparty multimedia applications. Proponents of ATM argue that only a connection-oriented network can satisfy the stringent timeliness requirements of high-quality audio and video data. Proponents of the Internet emphasize the scalability and flexibility of connectionless networking. In this paper a multiparty multimedia telelecture system, called Distance Learning Controller (DLC), is presented that uses both ATM and IP, thus, attempting to exploit the advantages of both technologies, without suffering the drawbacks of either technology. The DLC system uses ATM for transmission of broadcast-quality video and CD-quality audio, and IP-over-ATM for low-bandwidth applications and conference control functions. This paper describes the hardware and software components of the DLC system. 

• Type: Journal
• Year: 2000
• Where: MTA
• Authors: Jörg Liebeherr, Steven R. Brown, Rick Albertson
• Keywords: Better Internetworking Technology, MTA 2000, Multiparty Multimedia, Multiparty Multimedia Applications