Informace o publikaci

Parallelized LDGM Coding for Demanding Multimedia Applications



Rok publikování 2012
Druh Článek ve sborníku
Konference Memics 2012, Eighth Doctoral Workshop on Mathematical and Engineering Methods in Computer Science
Popis 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.