DocumentCode
2437682
Title
Irregular repeat-accumulate-like codes with improved error floor performance
Author
Hayes, David F. ; Johnson, Sarah J. ; Weller, Steven R.
Author_Institution
Sch. of Electr. Eng. & Comput. Sci., Univ. of Newcastle, Callaghan, NSW, Australia
fYear
2010
fDate
Aug. 30 2010-Sept. 3 2010
Firstpage
1
Lastpage
5
Abstract
In this paper, we present a new class of iteratively decoded error correction codes. These codes, which are a modification of irregular repeat-accumulate (IRA) codes, are termed generalized IRA (GIRA) codes, and are designed for improved error floor performance. GIRA codes are systematic, easily encodable, and are decoded with the sum-product algorithm. In this paper we present a density evolution algorithm to compute the threshold of GIRA codes, and find GIRA degree distributions which produce codes with good thresholds. We then propose inner code designs and show using simulation results that they improve upon the error floor performance of IRA codes.
Keywords
error correction codes; error correction codes; generalized IRA codes; improved error floor performance; irregular repeat-accumulate-like codes; AWGN channels; Bit error rate; Complexity theory; Decoding; Encoding; Parity check codes; Systematics;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory Workshop (ITW), 2010 IEEE
Conference_Location
Dublin
Print_ISBN
978-1-4244-8262-7
Electronic_ISBN
978-1-4244-8263-4
Type
conf
DOI
10.1109/CIG.2010.5592734
Filename
5592734
Link To Document