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Geometry Construction of (n,3,k) LDPC Codes without Short Cycles |
Ma Zhe; Du Xing-min; Ma Lin-hua |
The Engineering Institute, Air Force Engineering University, Xi’an 710038, China |
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Abstract In this paper, based on (n,2,k) regular Low Density Parity-Check (LDPC) codes without short cycles, a geometry method for the construction of(n,3,k) regular LDPC codes with 8-girth is proposed,which is simple,intuitionistic and effective. Simulation results show that these codes achieve obviously better performance than randomly constructed regular LDPC codes over AWGN channals.
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Received: 14 April 2005
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