DocumentCode
3438787
Title
Construction of quasi cyclic LDPC with ACE constraint
Author
Li, Jilong ; Di, Na ; Yang, Ming ; Wu, Zhiyong
Author_Institution
Wireless Technol. Inst., Acad. of Broadcasting Sci., Beijing, China
fYear
2010
fDate
25-27 June 2010
Firstpage
90
Lastpage
93
Abstract
In this paper, LDPC code structure and decoder implementation is reviewed. The effect of graph connectivity on LDPC performance is analyzed. The metric of ACE (approximate cycle EMD) in code construction avoids small trapping sets by emphasizing the connectivity. A construction algorithm with ACE constraint is proposed which maximize the girth and stopping sets in a best effort way. Simulation results justify the efficiency of the algorithm.
Keywords
Additive white noise; Broadcast technology; Broadcasting; Degradation; Delay; Hardware; Iterative algorithms; Iterative decoding; Parity check codes; Throughput; ACE; QC-LDPC; stopping set;
fLanguage
English
Publisher
ieee
Conference_Titel
Wireless Communications, Networking and Information Security (WCNIS), 2010 IEEE International Conference on
Conference_Location
Beijing, China
Print_ISBN
978-1-4244-5850-9
Type
conf
DOI
10.1109/WCINS.2010.5541895
Filename
5541895
Link To Document