Performance analysis of the efficacy of packet-level FEC in improving video transport over networks

Xunqi Yu, James W. Modestino, Ivan V. Bajic

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations

Abstract

Packet video transport over networks is expected to experience packet losses due to congestion, link failures and timeouts. Packet-level FEC is often proposed to combat these packet losses and thus improve received video quality. However, the redundant packets associated with the FEC coding will increase the effective network load and, as a result, further exacerbate the network packet-loss rates. In this work, we propose a model framework to describe FEC-protected packet video network transport systems and analytically investigate the overall efficacy of packet-level FEC in improving the end-to-end video quality. We consider a simplified network scenario, where the network congestion performance can be described in terms of a single bottleneck node, modeled as a multiplexer. Our results show that packet-level FEC can significantly improve the end-to-end video quality provided that the coding block size is large enough and the coding rate is appropriately chosen, assuming other system parameters are likewise appropriately chosen. We also demonstrate that, when multiple sources share the multiplexer, FEC coding can achieve significant multiplexing gain in terms of the number of video sources that can be supported for a given end-to-end performance.

Original languageEnglish
Title of host publicationProceedings - International Conference on Image Processing, ICIP
Pages177-180
Number of pages4
Volume2
DOIs
StatePublished - Dec 1 2005
EventIEEE International Conference on Image Processing 2005, ICIP 2005 - Genova, Italy
Duration: Sep 11 2005Sep 14 2005

Other

OtherIEEE International Conference on Image Processing 2005, ICIP 2005
CountryItaly
CityGenova
Period9/11/059/14/05

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Yu, X., Modestino, J. W., & Bajic, I. V. (2005). Performance analysis of the efficacy of packet-level FEC in improving video transport over networks. In Proceedings - International Conference on Image Processing, ICIP (Vol. 2, pp. 177-180). [1530020] https://doi.org/10.1109/ICIP.2005.1530020