Field Experimental DL MU-MIMO Evaluations of Low-SHF-Band C-RAN Massive MIMO System with over 100 Antenna Elements for 5G
| Autor: | Kenichiro Yamazaki, Jun Mashino, Kohei Izui, Toshifumi Sato, Satoshi Suyama, Tatsuki Okuyama, Yukihiko Okumura, Kanada Nakayasu |
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| Rok vydání: | 2018 |
| Předmět: |
Radio access network
Computer science 010102 general mathematics MIMO 020206 networking & telecommunications 02 engineering and technology Spectral efficiency 01 natural sciences Multi-user MIMO Spatial multiplexing Hardware_GENERAL Telecommunications link 0202 electrical engineering electronic engineering information engineering Electronic engineering Active antenna 0101 mathematics Antenna (radio) Computer Science::Information Theory C-RAN |
| Zdroj: | VTC-Fall |
| DOI: | 10.1109/vtcfall.2018.8690960 |
| Popis: | This paper describes our activities related to Massive Multi Input and Multi Output (MIMO) for use in a 5G radio access network (RAN). To achieve capacity enhancement and low power consumption, Massive MIMO has drawn attention as a key technology. Our research focuses on utilizing Massive MIMO in the low super-high-frequency (SHF) band, which is expected to be used for 5G commercial bands relatively soon, and on enhancing spectrum efficiency by spatial multiplexing with a low-SHF-band Massive MIMO antenna. The present work introduces a prototype low-SHF-band Centralized-RAN (C-RAN) Massive MIMO System including a low-SHF-band Massive MIMO Active Antenna System (AAS) that has 64 antenna elements, reports on outdoor and indoor downlink (DL) multi-user (MU) MIMO evaluations with the prototype system in both cases of 1 AAS unit and 2 AAS units, and presents the results of the evaluations. From the results, we confirmed that the prototype low-SHF-band C-RAN Massive MIMO system can optimize the performance with the minimum configuration of AAS units by changing the configuration appropriately depending on the environment. |
| Databáze: | OpenAIRE |
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