DocumentCode
1035627
Title
On the limiting performance of turbo-Hadamard codes
Author
Wu, Yao-Jun ; Ping, Li
Author_Institution
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China
Volume
8
Issue
7
fYear
2004
fDate
7/1/2004 12:00:00 AM
Firstpage
449
Lastpage
451
Abstract
In this letter, we employ the extrinsic information transfer (EXIT) chart technique to assess the limiting performance of turbo-Hadamard codes and identify the optimized design parameters for such codes. It is shown that for a sufficiently long code length and a sufficiently large number of iterations, a carefully designed low rate turbo-Hadamard code can potentially achieve successful decoding at Eb/N0≈-1.3 dB, which is about 0.29 dB from the ultimate Shannon limit.
Keywords
AWGN channels; Hadamard codes; information theory; turbo codes; AWGV channel; Shannon limit; extrinsic information transfer chart technique; optimized design parameters; turbo-Hadamard codes; AWGN; Additive white noise; Bit error rate; Communication systems; Concatenated codes; Convolutional codes; Design optimization; Iterative decoding; Parity check codes; Turbo codes; EXIT; Extrinsic information transfer; charts; low-rate Shannon limit; turbo-Hadamard codes;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2004.832757
Filename
1315673
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