| Project/Area Number |
17K06435
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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 | Osaka Prefecture University |
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Principal Investigator |
Lin Hai 大阪府立大学, 工学(系)研究科(研究院), 教授 (40336805)
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| Project Period (FY) |
2017-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | Massive MIMO / 無線ネットワーク / 無線通信 / 移動体通信 / 情報通信工学 |
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| Outline of Final Research Achievements |
Massive MIMO and dense network consisting of a large number of small cells are two key technologies for the next generation wireless communication systems. In this research, we investigate the impact of the densities of base stations and antennas on the coverage probability of the massive MIMO dense network. We also study the downlink performance of massive MIMO with pilot contamination caused by pilot reuse among neighbor cells. Furthermore, we propose angular domain precoding methods for massive MIMO downlink transmission in various communication scenarios.
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| Academic Significance and Societal Importance of the Research Achievements |
Massive MIMOと高密度ネットワークは次世代無線通信システムのコア技術である．本研究はMassive MIMO高密度ネットワーク設計の理論根拠を解明し，また現実的なシナリオと経済性を考慮したダウンリンク伝送方法を示すものである．本研究の結果により，超多素子アンテナと高密度ネットワーク両者のポテンシャルを活かせる無線システムを構築することができ，次世代超大容量無線通信システム実現に向けて重要な意義がある．
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