Laser & Optoelectronics Progress, Volume. 59, Issue 11, 1106002(2022)
Min-Sum Decoding Algorithm that Introduced Shuffled Strategy and Improved Variable Node Update
Low-density parity-check code is a kind of linear block code, which has received much attention in recent years. At present, the min-sum (MS) algorithm, which is widely used, has a lot of decoding loss, and it belongs to flood scheduling, so the decoding convergence speed is slow. In this paper, the MS decoding algorithm that introduced shuffled strategy and improved variable node update (shuffled-VNU-MS) is proposed. When the improved algorithm updates check node information of current column in this iteration, it can use the latest variable node information of the previous sequence, and the variable node information is averaged by the weighted factor. The simulation results show that when the code length is 256, the code rate is 0.5, and the bit error rate is
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Yu Liu, Yaohui Hao, Zhou Huang, Chan Wang, Lin Bai. Min-Sum Decoding Algorithm that Introduced Shuffled Strategy and Improved Variable Node Update[J]. Laser & Optoelectronics Progress, 2022, 59(11): 1106002
Category: Fiber Optics and Optical Communications
Received: May. 24, 2021
Accepted: Jul. 14, 2021
Published Online: Jun. 9, 2022
The Author Email: Hao Yaohui (2649276979@qq.com)