Packetized Video On Magnet

Theoretical analysis of an ILAN model of MAGNET, an integrated network testbed developed at Columbia University, shows that the bandwidth freed up by video and voice calls during periods of little movement in the images and silence periods in the speech signals could be utilized efficiently for graphics and data transmission. Based on these investigations, an architecture supporting adaptive protocols that are dynamically controlled by the requirements of a fluctuating load and changing user environment has been advanced. To further analyze the behavior of the network, a real-time packetized video system has been implemented. This system is embedded in the real time multimedia workstation EDDY that integrates video, voice and data traffic flows. Protocols supporting variable bandwidth, constant quality packetized video transport are descibed in detail.

[1]  H. Armbruster.  Applications of Future Braod-Band Services in the Office and Home , 1986 .

[2]  Manfred Tasto.  Terminals for Broad-band Office Communications , 1986, IEEE J. Sel. Areas Commun..

[3]  Tatsuro Takahashi,et al.  MAGNET: Columbia's Integrated Network Testbed , 1985, IEEE J. Sel. Areas Commun..

[4]  Aurel A. Lazar,et al.  MAGNET's Integrated Network Architecture , 1986, MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's.

[5]  R.F. Sproull,et al.  High-level protocols , 1978, Proceedings of the IEEE.

[6]  Setsuo Tsuruta,et al.  Intelligent Communication Terminal for Integrating Voice Data and Video Signals , 1986, ICC.

[7]  Clifford J. Weinstein,et al.  Experience with Speech Communication in Packet Networks , 1983, IEEE J. Sel. Areas Commun..

[8]  W. David Sincoskie,et al.  A Distributed Experimental Communications System , 1983, IEEE Journal on Selected Areas in Communications.

[9]  Roy Want,et al.  Protocols for Real Time Voice Communications on a Packet Local Network , 1986, ICC.

[10]  Robert H. Thomas,et al.  Diamond: A Multimedia Message System Built on a Distributed Architecture. , 1988 .

[11]  Aurel A. Lazar,et al.  A Reference Model for Integrated Local Area Networks , 1986, ICC.

[12]  William L. Hoberecht.  A Layered Network Protocol for Packet Voice and Data Integration , 1983, IEEE Journal on Selected Areas in Communications.

[13]  Tatsuro Takahashi,et al.  An Optical Fiber-Based Integrated LAN for MAGNET's Testbed Environment , 1985, IEEE Journal on Selected Areas in Communications.

[14]  A.N. Netravali,et al.  Picture coding: A review , 1980, Proceedings of the IEEE.