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Gradient descent bit flipping algorithms for decoding LDPC codes

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6 Author(s)
Wadayama, T. ; Nagoya Inst. of Technol., Nagoya ; Nakamura, K. ; Yagita, M. ; Funahashi, Y.
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A novel class of bit-flipping (BF) algorithms for decoding low-density parity-check (LDPC) codes is presented. The proposed algorithms, which are called gradient descent bit flipping (GDBF) algorithms, can be regarded as simplified gradient descent algorithms. Based on gradient descent formulation, the proposed algorithms are naturally derived from a simple nonlinear objective function.

Published in:

Information Theory and Its Applications, 2008. ISITA 2008. International Symposium on

Date of Conference:

7-10 Dec. 2008