Graceful degradation over packet erasure channels through forward error correction

Author

Mohr, Alexander E. ; Riskin, Eve A. ; Ladner, Richard E.

Author_Institution

Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA

fYear

1999

fDate

29-31 Mar 1999

Firstpage

92

Lastpage

101

Abstract

We present an algorithm that assigns unequal amounts of forward error correction to progressive data so as to provide graceful degradation as packet losses increase. We use the SPIHT coder to compress images in this work, but our algorithm can protect any progressive compression scheme. The algorithm can also use almost any function as a model of packet loss conditions. We find that for an exponential packet loss model with a mean of 20% and a total rate of 0.2 bpp, good image quality can be obtained, even when 40% of transmitted packets are lost

Keywords

data compression; forward error correction; image coding; packet switching; telecommunication channels; visual communication; SPIHT coder; exponential packet loss model; forward error correction; graceful degradation; image compression; image quality; packet erasure channels; packet losses; progressive data; transmitted packets; Computer networks; Decoding; Degradation; Face recognition; Forward error correction; IP networks; Image coding; Image quality; Partitioning algorithms; Propagation losses; Protection;

fLanguage

English

Publisher

ieee

Conference_Titel

Data Compression Conference, 1999. Proceedings. DCC '99

Conference_Location

Snowbird, UT

ISSN

1068-0314

Print_ISBN

0-7695-0096-X

Type

conf

DOI

10.1109/DCC.1999.755658

Filename

755658