2012 Fiscal Year Final Research Report
Analysis and Construction of High Performance Multi-Edge typeLDPC Codes
| Project/Area Number |
22560363
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Communication/Network engineering
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
SAKANIWA Kohichi 東京工業大学, 大学院・理工学研究科, 教授 (30114870)
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| Co-Investigator(Kenkyū-buntansha) |
KASAI Kenta 東京工業大学, 理工学研究科, 准教授 (70431997)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 符号化 / LDPC 符号 / マルチエッジ型 / 重み分布の対称性 |
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| Research Abstract |
We considered in this research the multi-edge type irregular LDPC (Low-Density Parity-Check) codes, a very general class of LDPC codes, and obtained the following results. We first clarified a fundamental property that codeword weight distribution has so-called symmetry property which is preserved for the concatenation of base Tanner graphs. Using this fundamental property, we could systematically derive codeword weight distributions for multi-edge type LDPC code ensembles. We could then find several useful and high performance multi-edge type LDPC code ensembles.
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Research Products
(20 results)
