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| Density Evolution Method and Threshold Decision for Irregular LDPC Codes |
| Xiao Juan①; Wang Lin①②; Deng Li-zhao③ |
| ①Institute of Info and Coding Tech., Chongqing Univ. of Posts & Telecomm.,Chongqing 400065 China;②Dept of Electronic Engineering Xiamen Univ., Xiamen 361005 China;③Chongqing Communication Administration Chongqing 400042 China |
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Abstract In this paper, the principle of density evolution combined with decoding process is explained firstly. Two algorithms discretized density evolution and Gaussian approximation to program the evolution proceeding are discussed. Simulation results of some good distribution pairs that are found are presented as well.
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Received: 28 November 2003
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2005, Vol. 27 
