MPEG compliant joint source/channel coding using DCT and substream scheduling for packet networks

S. W. Kim, S. Suthaharan, G. H. Lee, H. K. Lee, K. R. Rao

Research output: Contribution to journalConference articlepeer-review


QoS-guarantee in real-time communication for multimedia applications is significantly important. An architectural framework for multimedia networks based on substreams or flows is effectively exploited for combining source and channel coding for multimedia data. But the existing frame by frame approach which includes Moving Pictures Expert Group (MPEG) cannot be neglected because it is a standard. In this paper, firstly, we designed an MPEG transcoder which converts an MPEG coded stream into variable rate packet sequences to be used for our joint source/channel coding (JSCC) scheme. Secondly, we designed a classification scheme to partition the packet stream into multiple substreams which have their own Quality of Service (QoS) requirements. Finally, we designed a management (reservation and scheduling) scheme for substreams to support better perceptual video quality such as the bound of end-to-end jitter. We have shown that our JSCC scheme is better than two other popular techniques by simulation and real video experiments on the TCP/IP environment.

Original languageEnglish
Pages (from-to)260-270
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue numberI
StatePublished - 1999
EventProceedings of the 1999 Visual Communications and Image Processing - San Jose, CA, USA
Duration: 25 Jan 199927 Jan 1999


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