@article{Qian2013, 
author = {Chen Qian and Weilong Lei and Zhaocheng Wang},
title = {Low Complexity LDPC Decoder with Modified Sum-Product Algorithm},
year = {2013},
journal = {Tsinghua Science and Technology},
volume = {18},
number = {1},
pages = {57-61},
keywords = {Low Density Parity Check (LDPC) code, decoding, look-up table},
url = {https://www.sciopen.com/article/10.1109/TST.2013.6449408},
doi = {10.1109/TST.2013.6449408},
abstract = {This paper describes an efficient implementation of the Sum-Product Algorithm (SPA) within a Low Density Parity Check (LDPC) code decoder, where a horizontal process correction term is used to improve the decoding performance of the Min-Sum algorithms. The correction term is implemented as a look-up table. The algorithm uses the correction term redundancy by means of a coordinate transformation to reduce the hardware complexity. Simulations and hardware tests indicate that the decoding performance is very good with the appropriate look-up table.}
}