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Adaptive offset min-sum algorithm for low-density parity check codes

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4 Author(s)
Ming Jiang ; Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing ; Chunming Zhao ; Li Zhang ; Enyang Xu

An improvement is presented to the offset min-sum decoding algorithm for low-density parity check codes. The proposed algorithm introduces a more efficient adjustment for check-node update computation in view of different minimum values. According to the optimal correction factor of normalized min-sum algorithm, we can determine the adaptive offset item. The improved algorithm achieves a noticeable performance gain with only a modest increase in computation complexity

Published in:

Communications Letters, IEEE  (Volume:10 ,  Issue: 6 )