Parallelized LDGM Coding for Demanding Multimedia Applications

KABÁT, Milan a Petr HOLUB. Parallelized LDGM Coding for Demanding Multimedia Applications. In Antonin Kucera, Thomas A. Henzinger, Jaroslav Nesetril, Tomas Vojnar, David Antos. Memics 2012, Eighth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science. First edition. Brno: Novpress s.r.o., 2012, s. 28-37. ISBN 978-80-87342-15-2.

Základní údaje

• Originální název: Parallelized LDGM Coding for Demanding Multimedia Applications
• Autoři: KABÁT, Milan a Petr HOLUB.
• Vydání: First edition. Brno, Memics 2012, Eighth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science, od s. 28-37, 10 s. 2012.
• Nakladatel: Novpress s.r.o.

Další údaje

• Typ výsledku: Stať ve sborníku
• Utajení: není předmětem státního či obchodního tajemství
• ISBN: 978-80-87342-15-2
• Příznaky: Recenzováno

Anotace

When providing high-resolution real-time video transmission, even moderate packet loss may have a significant impact on the resulting multimedia quality. Several methods are being used to cope with packet erasures, including redundant or multipath transmissions, forward error correction, or a combination of these approaches. Low-density Generator Matrix (LDGM) codes are considered to be suit- able for application-layer FEC. In this article, we study how GPUs can be helpful in providing high-performing error-correction mechanism for real- time multimedia applications. We propose a novel design of parallelized LDGM coding on GPU and also an optimized, vector-parallel approach to such coding on CPU. Furthermore, we compare the performance of both methods under various coding settings.