A Modified Weighted Bit-Flipping Algorithm for LDPC Codes
In this paper, a modified weighted bit-flipping (WBF) algorithm is proposed for finite geometry Low-Density Parity-Check (FG-LDPC) codes. The calculation for the flipping function in the new method includes all the elements in sum product algorithm (SPA) instead of the minimum one in most existing methods. Simulation results show that the proposed method exhibits better performance than the best method available in the literature so far. The performances of different algorithms are also considered in random constructed LDPC codes. The reliability ratio based WBF (RRWBF) method performs the best in this kind of codes and the proposed method performs very closely to the RRWBF method. The decoding complexities for both FG-LDPC and random constructed LDPC are also analyzed.
LDPC codes SPA WBF algorithm
Haigang Zhang Dongfeng Yuan Cheng-Xiang Wang
School of Information Science and Engineering,Shandong University,Jinan,Shandong,250100,P.R.China. Research Institute for Signal and Image Processing,School of Engineering & Physical Sciences,Heriot-
国际会议
The IET 2nd International Conference on Wireless,Mobile & Multimedia Networks(第二届IET国际无线移动多媒体网络会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）