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2010 Asia-Pacific Conference on Information Theory (APCIT 2010 E-BOOK)

Xi'an,China,10.1-10.2,2010

ISBN: 978-1-935068-47-1 Scientific Research Publishing, USA

E-Book 506pp Pub. Date: November 2010

Category: Computer Science & Communications

Price: $80

Title: Analysis of Graphical Model and Construction Algorithm of IRA-Like Codes
Source: 2010 Asia-Pacific Conference on Information Theory (APCIT 2010 E-BOOK) (pp 112-118)
Author(s): Jing Lei, School of Electronic Science & Engineering, National University of Defence Technology, Changsha, China
Lei Wen, School of Electronic Science & Engineering, National University of Defence Technology, Changsha, China
Bin Chen, School of Electronic Science & Engineering, National University of Defence Technology, Changsha, China
Chaojing Tang, School of Electronic Science & Engineering, National University of Defence Technology, Changsha, China
Abstract: IRA Codes have potential ability to achieve Shannon limit, and their complexity of encoding and decoding is lower than normal LDPC Codes. Analyze graphical structure of IRA-like Codes, the construc- tion of parity check matrix is connection of variable nodes and check nods properly. Research the situation of adding degree of 2, 3 and 4. The presentation of cycle and low heavy codes and its performance are stu- died. Simulation results show the conclusion applied to construction of IRA-like Codes could bring excel- lent performance.
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