Multiuser MIMO Based on Available CSI at BS for Time-Varying Environments
| Project/Area Number |
20560367
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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 | Keio University |
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Principal Investigator |
OTSUKI Tomoaki Keio University, 理工学部, 教授 (10277288)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | MIMO / フィードバック / マルチユーザMIMO / ユーザ選択法 / グラムシュミット直交化 / マルチューザMIMO / 通信路予測 / ユーザ選択 |
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| Research Abstract |
In this research, I proposed several downlink multi-user MIMO (MU-MIMO) transmission schemes to achieve high capacity according to the available channel state information (CSI). First I proposed the user-selection for MU-MIMO using channel prediction for time-varying channel. Second, I proposed the resource allocation based on users' requirements for QoS and CSI. Moreover, I proposed an orthogonal beamforming method using Gram-Schmidt orthogonalization. I showed the effectiveness of each proposed method.
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Report
(4 results)
Research Products
(139 results)
