| Project/Area Number |
21760295
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Communication/Network engineering
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| Research Institution | The University of Tokushima |
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Principal Investigator |
TOKUSHIGE Hitoshi The University of Tokushima, 大学院・ソシオテクノサイエンス研究部, 講師 (50336921)
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| Project Period (FY) |
2009 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | LT符号 / レートレス符号 / 逐次型復号 / 限界距離復号 / 連接符号 / シリアル連接符号 / 軟値入出力復号法 |
|---|
| Research Abstract |
LT codes are rate less codes whose code length and dimension can be arbitrarily chosen. It has been shown that they provide considerably better performance by using a message-passing decoding. However, they are not able to achieve good error performance for a noisy channel. Then we propose a concatenated code using outer LT and inner conventional error correcting codes, and its decoding algorithm in which an iterative bounded-distance decoding and soft-decision LT decoding are performed to the inner and outer codes, respectively. The simulation results have shown that the proposed scheme is more effective than a conventional concatenated coding scheme.
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