| Project/Area Number |
21560388
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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 | National Institute of Information and Communications Technology |
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Principal Investigator |
KOBAYASHI Kingo 独立行政法人情報通信研究機構, ネットワークセキュリティ研究所, R & Dアドバイザー (20029515)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAGUCHI Kazuhiko 電気通信大学, 大学院・情報理工学研究科, 准教授 (60220258)
BRIAN Kurukoski 電気通信大学, 大学院・情報理工学研究科, 准教授 (80444123)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 情報理論 / 符号化 / ネットワーク・LAN / 有限状態通信路 / 隠レマルコフ情報源 / 離散情報システム / 干渉通信路 / 電子透かし / 通信路容量 / 通信路の量子化 / LDPC符号 / LDLC符号 / 隠れマルコフ情報源 / エントロピー / データ圧縮 |
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| Research Abstract |
We proceeded the theoretical studies on several open topics of modern information network systems, especially focused on problems of the interference channel and finite state channels such as the trapdoor channels. We gave transparent aspects on the difficulties contained in the problems. Moreover, we also concentrated the topics on LDPC codes based on the lattice, and proposed decoding algorithms using approximated Gaussian distributions for real-world applications.
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