Publication

Packet video and its integration into the network architecture

Martin Vetterli
1989
Journal Articles

Abstract

Packet video is investigated from a systems point of view. The most important issues to its transmission are identified and studied in the context of a layered architecture model. This leads to a better understanding of the interactions between network and signal handling. The functions at a particular layer can thereby be made least dependent on network implementation and signal format. In the model, the higher layers provide format conversion, hierarchical source coding, error recovery, resynchronization, cost/quality arbitration, session setup and tear-down, packetization and multiplexing. Provisions from the network layers pertain mainly to real-time transmissions. Special consideration is given to hierarchical source coding, error recovery, statistical behavior, and timing aspects. Simulation results are presented for a subband coding scheme.

Official source

https://infoscience.epfl.ch/entities/publication/73a40d31-91e8-4f0e-b805-16db0f023906

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Martin Vetterli
1989
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/73a40d31-91e8-4f0e-b805-16db0f023906

About this result

Related concepts (30)

OSI model

The Open Systems Interconnection model (OSI model) is a conceptual model from the International Organization for Standardization (ISO) that "provides a common basis for the coordination of standards development for the purpose of systems interconnection." In the OSI reference model, the communications between a computing system are split into seven different abstraction layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

Real Time Streaming Protocol

The Real Time Streaming Protocol (RTSP) is an application-level network protocol designed for multiplexing and packetizing multimedia transport streams (such as interactive media, video and audio) over a suitable transport protocol. RTSP is used in entertainment and communications systems to control streaming media servers. The protocol is used for establishing and controlling media sessions between endpoints.

Packet loss

Packet loss occurs when one or more packets of data travelling across a computer network fail to reach their destination. Packet loss is either caused by errors in data transmission, typically across wireless networks, or network congestion. Packet loss is measured as a percentage of packets lost with respect to packets sent. The Transmission Control Protocol (TCP) detects packet loss and performs retransmissions to ensure reliable messaging.

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Packet video and its integration into the network architecture

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