| Project/Area Number |
26420337
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Communication/Network engineering
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| Research Institution | Ibaraki University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Keywords | 通信路推定 / 高速無線伝送 / ブラインド信号処理 / スパース通信路 / 時変通信路 / OFDM / ブラインド推定 / OFDMA |
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| Outline of Final Research Achievements |
In this study, we consider channel estimation methods for high-speed data transmission in mobile environments. Our final goal is to develop the method to estimate time-variant channels using a few pilot symbols. First, we consider an estimation method for time-invariant sparse channels in OFDM systems with a few pilot symbols. This method combines a deterministic blind channel estimation method and L1 regularization. Next, we extend this method to OFDMA systems and show its effectiveness by computer simulations. Next, we consider an estimation method for time-variant sparse channels using no pilot symbols and show its effectiveness by simulations.
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