Efficient Incremental Raptor Decoding Over BEC for 3GPP MBMS and DVB IP-Datacast Services

被引：15
|
作者：
Mladenov, Todor [1 ]
Nooshabadi, Saeid [2 ]
Kim, Kiseon [1 ]
机构：
[1] Gwangju Inst Sci & Technol, Dept Informat & Commun, Kwangju 500712, South Korea
[2] Michigan Technol Univ, Dept Elect & Comp Engn, Houghton, MI 49931 USA
来源：
IEEE TRANSACTIONS ON BROADCASTING | 2011年 / 57卷 / 02期
关键词：
Codes; FEC; incremental decoding; raptor decoder; raptor multimedia broadcasting; 3GPP MBMS; DELIVERY; DESIGN; CODES;
D O I：
10.1109/TBC.2010.2102930
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The application layer forward error correction (FEC) schemes of the 3rd Generation Partnership Project (3GPP) Multimedia Broadcast/Multicast Service (MBMS) standard and IP Datacast over Digital Video Broadcasting (DVB) services employ systematic Raptor codes. Additionally, the 3GPP MBMS standard suggests the use of efficient enhanced Gaussian elimination (EGE) matrix inversion algorithm for the Raptor decoder. In this letter we propose a new incremental EGE (IEGE) algorithm, based on the specification of the EGE. We perform a detailed performance and complexity comparison with EGE, for various decoding scenarios. We show that IEGE performs up to 15.8 times better. Additionally, we investigate the choice of the decoding scheme, based on the symbol arrival rate.
引用
收藏
页码：313 / 318
页数：6
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