| Project/Area Number |
21760292
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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 | University of the Ryukyus (2010)
Nara Institute of Science and Technology (2009) |
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Principal Investigator |
SAITO Masato University of the Ryukyus, 工学部, 准教授 (30335476)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2009: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 直交周波数分割多重方式 / 電力割当 / 周波数選択性フェージング / 最適化 / 中継方式 / 非再生中継 / 情報通信工学 / 数理工学 / 移動体通信 / 情報理論 / 最適化問題 |
|---|
| Research Abstract |
The objective of this study is to clarify the channel capacity of multi-channel wireless communication systems which use relay techniques to expand the reachable area from a sender. Toward the objective, we consider optimal power allocation to each channel of the multi-channel system. As the relay techniques, we propose a simple amplify-and-forward relay, a channel switching method according to the quality of each channel state, and a switching method of chunk of channels based on the channel state information. As the result, we proposed corresponding optimal power allocation methods to each relay technique and derived channel capacities.
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