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CLC number: TN919.8

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Received: 2005-12-05

Revision Accepted: 2006-02-25

Crosschecked: 0000-00-00

Cited: 12

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Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2006 Vol.7 No.100 P.27~33


Dependency-aware unequal erasure protection codes

Author(s):  Bouabdallah Amine, Lacan Jé,rô,me

Affiliation(s):  Laboratory for Analysis and Architecture of Systems, Toulouse 31077, France; more

Corresponding email(s):   amine.bouabdallah@ensica.fr, jerome.lacan@ensica.fr

Key Words:  Data dependencies integration, Unequal erasure protection (UEP), Lossy networks, Reliable video transmissions, MPEG4 video codec

Bouabdallah Amine, Lacan Jérôme. Dependency-aware unequal erasure protection codes[J]. Journal of Zhejiang University Science A, 2006, 7(100): 27~33.

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A1 - Bouabdallah Amine
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DOI - 10.1631/jzus.2006.AS0027

Classical unequal erasure protection schemes split data to be protected into classes which are encoded independently. The unequal protection scheme presented in this paper is based on an erasure code which encodes all the data together according to the existing dependencies. A simple algorithm generates dynamically the generator matrix of the erasure code according to the packets streams structure, i.e., the dependencies between the packets, and the rate of the code. This proposed erasure code was applied to a packetized MPEG4 stream transmitted over a packet erasure channel and compared with other classical protection schemes in terms of PSNR and MOS. It is shown that the proposed code allows keeping a high video quality-level in a larger packet loss rate range than the other protection schemes.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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