Title :
Modified APP-Based Decoding Algorithm for Low-Density Parity Check Codes
Author :
Wang, Xinran ; Zhang, Yan ; Chen, Jinlei
Author_Institution :
Dept. of Electron. & Inf. Eng., Harbin Inst. of Technol., Shenzhen, China
Abstract :
In this paper, a modified a posteriori probability (APP) based algorithm for the decoding of low- density parity-check (LDPC) codes is proposed. The modified APP-based algorithm utilizes an additional processing in the bit nodes to improve the accuracy instead of the check nodes normalization performed in normalized APP-based algorithm. The modified APP- based algorithm yields desirable trade-off between performance and decoding complexity.
Keywords :
decoding; parity check codes; probability; LDPC code; bit node; check node normalization; decoding complexity; low-density parity check code; modified APP-based decoding algorithm; modified a posteriori probability-based decoding algorithm; Bit error rate; Complexity theory; Decoding; Iterative decoding; Signal to noise ratio; Simulation;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6250-6
DOI :
10.1109/wicom.2011.6039977
