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Euclidean distance soft-input soft-output decoding algorithm for low-density parity-check codes

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3 Author(s)
Farrell, P.G. ; Lancaster Univ., Lancaster, UK ; Arnone, L.J. ; Castiñeira Moreira, J.

A new antilog-sum algorithm for decoding error-correcting codes is described. The soft-input, soft-output (SISO) algorithm uses squared Euclidean distance as the metric, does not require knowledge of the signal-to-noise ratio of the received signal and is less complex to implement than other SISO algorithms. The results of simulations show that the performance is very close to that of the log-sum-product algorithm.

Published in:

Communications, IET  (Volume:5 ,  Issue: 16 )