A reliable, adaptive network protocol for video transport

Authors:
Pawan Goyal;Harrick M. Vin;Chia Shen;Prashant J. Shenoy
Affiliations:
Distributed Multimedia Computing Laboratory, Department of Computer Sciences, UT Austin, Austin, TX;Distributed Multimedia Computing Laboratory, Department of Computer Sciences, UT Austin, Austin, TX;Mitsubishi Electric Research Laboratory, Cambridge Research Center, Cambridge, MA;Distributed Multimedia Computing Laboratory, Department of Computer Sciences, UT Austin, Austin, TX
Venue:
INFOCOM'96 Proceedings of the Fifteenth annual joint conference of the IEEE computer and communications societies conference on The conference on computer communications - Volume 3
Year:
1996

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Abstract

In this paper, we present an adaptive network layer protocol for VBR video transport. It: (1) minimizes buffer requirement in the network while guaranteeing that packets of VBR encoded video flows will not be lost, and (2) minimizes end-to-end delay and jitter offrames. To achieve the former objective, we utilize receiver-oriented adaptive credit-based flow control algorithm, and derive necessary and sufficient number of buffers that should be reserved for ensuring its reliability. To minimize the end-to-end delay and jitter for VBR encoded video streams, we: (1) present bandwidth estimation techniques which exploit the structure of the video traffic, and (2) define a new fairness criteria for buffer allocation and then present a fair buffer/bandwidth allocation algorithm. We experimentally evaluate this protocol for a wide range of parameters and many network configuration and demonstrate its adaptability. We also compare the performance of the protocol with numerous other schemes and demonstrate its suitability for video transport.