Block-LDPC: a practical LDPC coding system design approach

This paper presents a joint low-density parity-check (LDPC) code-encoder-decoder design approach, called Block-LDPC, for practical LDPC coding system implementations. The key idea is to construct LDPC codes subject to certain hardware-oriented constraints that ensure the effective encoder and decode...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:IEEE transactions on circuits and systems. I, Regular papers Jg. 52; H. 4; S. 766 - 775
Hauptverfasser: Zhong, Hao, Zhang, Tong
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York IEEE 01.04.2005
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
Bipartite graph
Computer architecture
Computer errors
Decoder
Digital video broadcasting
encoder
Hardware
Iterative decoding
low-density parity check (LDPC)
Message passing
Parity check codes
Routing
Throughput
very large-scale integration (VLSI) architecture
ISSN:1549-8328, 1558-0806
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:This paper presents a joint low-density parity-check (LDPC) code-encoder-decoder design approach, called Block-LDPC, for practical LDPC coding system implementations. The key idea is to construct LDPC codes subject to certain hardware-oriented constraints that ensure the effective encoder and decoder hardware implementations. We develop a set of hardware-oriented constraints, subject to which a semi-random approach is used to construct Block-LDPC codes with good error-correcting performance. Correspondingly, we develop an efficient encoding strategy and a pipelined partially parallel Block-LDPC encoder architecture, and a partially parallel Block-LDPC decoder architecture. We present the estimation of Block-LDPC coding system implementation key metrics including the throughput and hardware complexity for both encoder and decoder. The good error-correcting performance of Block-LDPC codes has been demonstrated through computer simulations. With the effective encoder/decoder design and good error-correcting performance, Block-LDPC provides a promising vehicle for real-life LDPC coding system implementations.
Bibliographie:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 14
ISSN:1549-8328
1558-0806
DOI:10.1109/TCSI.2005.844113