Irregular Low-Density Parity-Check Code Design Based on Euclidean Geometries(Coding Theory)
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概要
- 論文の詳細を見る
We propose a scheme for the design of irregular low-density parity-check (LDPC) codes based on Euclidian Geometry using Latin square matrices of random sequence. Our scheme is a deterministic method that allows the easy design of good irregular LDPC codes for any code rate and degree distribution. We optimize the LDPC codes using the Gaussian approximation method. A Euclidean Geometry LDPC code (EG-LDPC) is used as the basis for the construction of an irregular LDPC code. The base EG-LDPC code is extended by splitting-rows and columns using a table of Latin square matrices of random sequence to determine the edges along which to split. We provide simulation results for codes constructed in this manner evaluated in terms of bit error rate (BER) performance in AWGN channels. We believe that our scheme is superior in terms of computational requirements and resulting BER performance in comparison to creation of irregular LDPC codes by means of random construction using a search algorithm to exclude cycles of length four.
- 社団法人電子情報通信学会の論文
- 2003-07-01
著者
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Matsumoto Wataru
Mitsubishi Electric Corporation
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Imai Hideki
Institute Of Industrial Science Interfaculty Initiative For Information Studies University Of Tokyo
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XU Weigang
Sanwa Electronic Corporation
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