LAYERED LDGM CODES FOR SCALABLE VIDEO STREAMING OVER PACKET ERASURE CHANNELS

被引：0

作者：

Tonomura, Yoshihide ^{[1
]}

Shirai, Daisuke ^{[1
]}

Nakachi, Takayuki ^{[1
]}

Fujii, Tatsuya ^{[1
]}

Kiya, Hitoshi ^{[2
]}

机构：

[1] NTT Corp, NTT Network Innovat Labs, Tokyo 2390847, Japan

[2] Tokyo Metropolitan Univ, Dept Informat & Commun Syst Engn, Fac Syst Design, Hino, Tokyo 191, Japan

来源：

2008 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATIONS SYSTEMS (ISPACS 2008) | 2008年

关键词：

LDPC codes; LDGM codes; FEC; Scalable video coding; Multicast streaming;

D O I：

暂无

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：

This paper introduces layered low-density generator matrix (Layered-LDGM) codes for scalable video streaming data. The layered-LDGM codes maintain the arbitrary relationship of each layer from the encoder side to the decoder side. This resulting structure supports partial decoding. Furthermore, the proposed codes create forward error correcting (FEC) packets that considers the relationship between the scalable components. Thus, the layered-LDGM codes enable lost packet data to be recovered effectively. Simulation results show that the proposed codes offer better error resiliency, without sacrificing scalability, than the existing method which creates FEC packets for each scalable component independently.

引用

页码：238 / +

页数：2

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