| Presentation | 2014-10-16 Influence of Channel Estimation on Massive MIMO with Joint Analog Beamforming and Digital Precoding in High Frequency Bands Satoshi Suyama, Tatsunori Obara, Jiyun Shen, Yukihiko Okumura, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order to tackle rapidly increasing traffic, 5th generation (5G) radio access network in mobile communications introduces small cells using higher frequency bands to expand channel capacity, and aims to achieve super high bit rate transmission realizing several tens Gbps by using Massive MIMO. In our previous work, to simplify the Massive MIMO transceiver, joint fixed beamforming (BF) and channel state information (CSI)-based precoding (FBCP) has been proposed as one of hybrid BF schemes that combine the analog BF with the digital precoding for Massive MIMO transmission using higher frequency bands. In this report, we propose a channel estimation method for the FBCP and evaluate influences of the channel estimation method by link level simulations using 256-element uniform planar array, and the simulation results show that the FBCP with the channel estimation can achieve more than 20 Gbps throughput by using 20 GHz band and 400 MHz bandwidth. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 5G / Higher frequency bands / Massive MIMO / Link budget / Beamforming / Channel estimation |
| Paper # | RCS2014-166 |
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| Committee | RCS |
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| Conference Date | 2014/10/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Influence of Channel Estimation on Massive MIMO with Joint Analog Beamforming and Digital Precoding in High Frequency Bands |
| Sub Title (in English) | |
| Keyword(1) | 5G |
| Keyword(2) | Higher frequency bands |
| Keyword(3) | Massive MIMO |
| Keyword(4) | Link budget |
| Keyword(5) | Beamforming |
| Keyword(6) | Channel estimation |
| 1st Author's Name | Satoshi Suyama |
| 1st Author's Affiliation | Research Laboratories, NTT DOCOMO, INC.() |
| 2nd Author's Name | Tatsunori Obara |
| 2nd Author's Affiliation | Research Laboratories, NTT DOCOMO, INC. |
| 3rd Author's Name | Jiyun Shen |
| 3rd Author's Affiliation | Research Laboratories, NTT DOCOMO, INC. |
| 4th Author's Name | Yukihiko Okumura |
| 4th Author's Affiliation | Research Laboratories, NTT DOCOMO, INC. |
| Date | 2014-10-16 |
| Paper # | RCS2014-166 |
| Volume (vol) | vol.114 |
| Number (no) | 254 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |