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On the limiting performance of turbo-Hadamard codes

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2 Author(s)
Yao-Jun Wu ; Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China ; Li Ping

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.

Published in:

Communications Letters, IEEE  (Volume:8 ,  Issue: 7 )