FOCS '02 Proceedings of the 43rd Symposium on Foundations of Computer Science
Good Codes Based on Very Sparse Matrices
Proceedings of the 5th IMA Conference on Cryptography and Coding
IEEE/ACM Transactions on Networking (TON) - Special issue on networking and information theory
Mobile data broadcasting over MBMS tradeoffs in forward error correction
MUM '06 Proceedings of the 5th international conference on Mobile and ubiquitous multimedia
Implementation and Performance Evaluation of LT and Raptor Codes for Multimedia Applications
IIH-MSP '06 Proceedings of the 2006 International Conference on Intelligent Information Hiding and Multimedia
Advanced fade countermeasures for DVB-S2 systems in railway scenarios
EURASIP Journal on Wireless Communications and Networking
| Hi-index | 0.00 |
In this paper the performance of LDPC-LDGM codes and Raptor codes is studied and compared in terms ofefficiency. LDPC-LDGM and Raptor are FEC codifications that can be applied at packet level. PL-FEC consists in including redundant packets in the transmission to ensure correct reception. Althought these techniques have been previously studied in the literature, they have usually been compared with the performance of small block Reed Solomon codes. This paper presents a novel comparison between the performance of LDPC-LDGM codes and Raptor codes as alternatives for packet level FEC when large codification blocks are needed. The results obtained show that Raptor codes clearly outperform LDPC-LDGM codes in almost all scenarios.