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Proceedings Paper

Evaluation of AL-FEC performance for IP television services QoS
Author(s): E. Mammi; G. Russo; A. Neri
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Paper Abstract

The IP television services quality is a critical issue because of the nature of transport infrastructure. Packet loss is the main cause of service degradation in such kind of network platforms. The use of forward error correction (FEC) techniques in the application layer (AL-FEC), between the source of TV service (video server) and the user terminal, seams to be an efficient strategy to counteract packet losses alternatively or in addiction to suitable traffic management policies (only feasible in "managed networks"). A number of AL-FEC techniques have been discussed in literature and proposed for inclusion in TV over IP international standards. In this paper a performance evaluation of the AL-FEC defined in SMPTE 2022-1 standard is presented. Different typical events occurring in IP networks causing different types (in terms of statistic distribution) of IP packet losses have been studied and AL-FEC performance to counteract these kind of losses have been evaluated. The performed analysis has been carried out in view of fulfilling the TV services QoS requirements that are usually very demanding. For managed networks, this paper envisages a strategy to combine the use of AL-FEC with the set-up of a transport quality based on FEC packets prioritization. Promising results regard this kind of strategy have been obtained.

Paper Details

Date Published: 18 January 2010
PDF: 12 pages
Proc. SPIE 7529, Image Quality and System Performance VII, 75290X (18 January 2010); doi: 10.1117/12.844267
Show Author Affiliations
E. Mammi, Univ. degli Studi di Roma Tre (Italy)
G. Russo, Fondazione Ugo Bordoni (Italy)
A. Neri, Univ. degli Studi di Roma Tre (Italy)

Published in SPIE Proceedings Vol. 7529:
Image Quality and System Performance VII
Susan P. Farnand; Frans Gaykema, Editor(s)

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