@inproceedings{d8d6916c3d1549f599b1eddcaf8c4f5d,
title = "A modified Min-sum decoding algorithm for LDPC codes based on analysis of overestimating value",
abstract = "Channel coding is necessary in satellite navigation system to ensure the validity of the navigation messages under the environment with weak signal. Min-sum algorithm is a frequently used decoding method for low density parity check (LDPC) codes. In this paper, a novel method is proposed, which modifies process of check node update in min-sum algorithm by subtracting the maximum overestimating value on output of check node. Simulation results show that the performance of proposed min-sum algorithm is close to log-likelihood-ratio-based belief-propagation (LLR-BP) algorithm and achieves a 0.3 dB coding gain than min-sum algorithm at bit error rate (BER) of 10-5. Also, its complexity is between LLR-BP algorithm and min-sum algorithm which could provide a new way for LDPC decoding of satellite navigation system.",
author = "Xiaowen Chen and Hongbo Zhao and Zhijun He and Wenquan Feng",
year = "2016",
doi = "10.33012/2016.14808",
language = "英语",
series = "29th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2016",
publisher = "Institute of Navigation",
pages = "2839--2848",
booktitle = "29th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2016",
address = "美国",
note = "29th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2016 ; Conference date: 12-09-2016 Through 16-09-2016",
}