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Trapping set structure of LDPC codes on finite geometries

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4 Author(s)
Qiuju Diao ; Department of Electrical and Computer Engineering University of California, Davis, CA 95616, USA ; Ying Yu Tai ; Shu Lin ; Khaled Abdel-Ghaffar

The trapping set structure of LDPC codes constructed based on finite geometries, called finite geometry (FG) LDPC codes, is analyzed using a geometric approach. In this approach, trapping sets in the Tanner graph of an FG-LDPC code are represented by subgeometries of the geometry based on which the code is constructed. Using this geometrical representation, bounds and configurations of trapping sets of an FG-LDPC code can be derived and analyzed.

Published in:

Information Theory and Applications Workshop (ITA), 2013

Date of Conference:

10-15 Feb. 2013