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Browse Journals & Magazines > Communications, IEEE Transact ...> Volume:53 Issue:10 Help

Iterative decoding and channel parameter estimation algorithms for repeat-accumulate codes

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2 Author(s)
Wangrok Oh ; Div. of Electr. & Comput. Eng., Pohang Univ. of Sci. & Technol., South Korea ; Cheun, K.

The sensitivity of the iterative decoder for repeat-accumulate (RA) codes to carrier phase and channel signal-to-noise ratio estimation errors is investigated, and efficient algorithms to estimate and correct these errors are developed. The behavior of RA codes with imperfect channel estimation is different from that of turbo codes, and correction algorithms specific to RA codes must be formulated. The proposed algorithms use the soft information generated within the iterative decoder, and thus, are not only hardware-efficient, but also offer excellent performance.

Published in:
Communications, IEEE Transactions on  (Volume:53 ,  Issue: 10 )

Date of Publication: Oct. 2005

Page(s):
1597 - 1602
ISSN :
0090-6778
INSPEC Accession Number:
8675860
Digital Object Identifier :
10.1109/TCOMM.2005.857150
Product Type:
Journals & Magazines
Date of Current Version :
10 October 2005
Issue Date :
Oct. 2005
Sponsored by :
IEEE Communications Society

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