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Browse Conference Publications > Information Theory, 2006 IEEE ... Help

Design of Rate-Compatible Irregular LDPC Codes for Incremental Redundancy Hybrid ARQ Systems

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4 Author(s)
Jaehong Kim ; Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA ; Woonhaing Hur ; Ramamoorthy, A. ; McLaughlin, S.W.

We present a new class of irregular low-density parity-check (LDPC) codes for finite block length (up to a few thousand symbols). The proposed codes are efficiently encodable and have a simple rate-compatible puncturing structure which is suitable for incremental redundancy hybrid automatic repeat request (IR-HARQ) systems. The codes outperform optimized irregular LDPC codes and (extended) irregular repeat-accumulate codes for rates 0.67-0.94, and are particularly good at high puncturing rates where good puncturing performance has been previously difficult to achieve. These characteristics result in good throughput performance over time-varying channels in IR-HARQ systems

Published in:
Information Theory, 2006 IEEE International Symposium on

Date of Conference: 9-14 July 2006

Page(s):
1139 - 1143
E-ISBN :
1-4244-0504-1
Print ISBN:
1-4244-0505-X
INSPEC Accession Number:
9164589
Conference Location :
Seattle, WA
Digital Object Identifier :
10.1109/ISIT.2006.261962
Product Type:
Conference Publications

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