The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
5세대 이동통신 시스템(4G)은 급증하는 모바일 데이터 트래픽을 수용하기 위해 4G보다 훨씬 더 높은 시스템 용량을 제공해야 합니다. 셀 밀도는 시스템 용량을 늘리는 효과적인 방법으로 간주되었습니다. 불행하게도 각 사용자 장비(UE)는 더 많은 전송 지점(TP)에 대한 가시선 내에 있게 되며 결과적인 셀 간 간섭으로 인해 시스템 용량이 저하됩니다. 우리는 중앙 베이스밴드 유닛에 연결된 모든 TP로부터의 공동 전송과 MU-MIMO를 결합하는 대규모 조정 다중 사용자 다중 입력 다중 출력(LSC-MU-MIMO)을 제안합니다. 우리는 이전에 컴퓨터 시뮬레이션을 통해 LSC-MU-MIMO의 다운링크 성능을 조사한 결과 TP 간 간섭을 크게 줄이고 고밀도 소형 셀의 시스템 용량을 향상시킬 수 있음을 발견했습니다. 본 논문에서는 TDD 상호성과 실시간 데이터를 기반으로 실시간 채널 추정을 수행할 수 있는 실험 시스템을 사용하여 조율된 TP 수가 최대 8개인 실내 실험을 통해 LSC-MU-MIMO의 처리량을 조사한다. 전염. LSC-MU-MIMO의 시스템 용량 향상을 명확히 하기 위해 16-TP, XNUMX-TP 및 XNUMX-TP 구성에서 조정 전송이 있는 경우와 없는 경우 동일한 실험 영역에서 측정된 처리량을 비교했습니다. 결과는 조정 전송의 경우 시스템 용량이 TP 수에 거의 정비례한다는 것을 보여줍니다.
Takaharu KOBAYASHI
FUJITSU LIMITED
Masafumi TSUTSUI
FUJITSU LIMITED
Takashi DATEKI
FUJITSU LIMITED
Hiroyuki SEKI
FUJITSU LIMITED
Morihiko MINOWA
FUJITSU LIMITED
Chiyoshi AKIYAMA
FUJITSU LABORATORIES LTD.
Tatsuki OKUYAMA
NTT DOCOMO, INC.
Jun MASHINO
NTT DOCOMO, INC.
Satoshi SUYAMA
NTT DOCOMO, INC.
Yukihiko OKUMURA
NTT DOCOMO, INC.
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Takaharu KOBAYASHI, Masafumi TSUTSUI, Takashi DATEKI, Hiroyuki SEKI, Morihiko MINOWA, Chiyoshi AKIYAMA, Tatsuki OKUYAMA, Jun MASHINO, Satoshi SUYAMA, Yukihiko OKUMURA, "Experimental Study of Large-Scale Coordinated Multi-User MIMO for 5G Ultra High-Density Distributed Antenna Systems" in IEICE TRANSACTIONS on Communications,
vol. E102-B, no. 8, pp. 1390-1400, August 2019, doi: 10.1587/transcom.2018TTP0012.
Abstract: Fifth-generation mobile communication systems (5G) must offer significantly higher system capacity than 4G in order to accommodate the rapidly increasing mobile data traffic. Cell densification has been considered an effective way to increase system capacity. Unfortunately, each user equipment (UE) will be in line-of-sight to many more transmission points (TPs) and the resulting inter-cell interference will degrade system capacity. We propose large-scale coordinated multi-user multiple-input multiple-output (LSC-MU-MIMO), which combines MU-MIMO with joint transmission from all the TPs connected to a centralized baseband unit. We previously investigated the downlink performance of LSC-MU-MIMO by computer simulation and found that it can significantly reduce inter-TP interference and improve the system capacity of high-density small cells. In this paper, we investigate the throughput of LSC-MU-MIMO through an indoor trial where the number of coordinated TPs is up to sixteen by using an experimental system that can execute real-time channel estimation based on TDD reciprocity and real-time data transmission. To clarify the improvement in the system capacity of LSC-MU-MIMO, we compared the throughput measured in the same experimental area with and without coordinated transmission in 4-TP, 8-TP, and 16-TP configurations. The results show that with coordinated transmission the system capacity is almost directly proportional to the number of TPs.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2018TTP0012/_p
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@ARTICLE{e102-b_8_1390,
author={Takaharu KOBAYASHI, Masafumi TSUTSUI, Takashi DATEKI, Hiroyuki SEKI, Morihiko MINOWA, Chiyoshi AKIYAMA, Tatsuki OKUYAMA, Jun MASHINO, Satoshi SUYAMA, Yukihiko OKUMURA, },
journal={IEICE TRANSACTIONS on Communications},
title={Experimental Study of Large-Scale Coordinated Multi-User MIMO for 5G Ultra High-Density Distributed Antenna Systems},
year={2019},
volume={E102-B},
number={8},
pages={1390-1400},
abstract={Fifth-generation mobile communication systems (5G) must offer significantly higher system capacity than 4G in order to accommodate the rapidly increasing mobile data traffic. Cell densification has been considered an effective way to increase system capacity. Unfortunately, each user equipment (UE) will be in line-of-sight to many more transmission points (TPs) and the resulting inter-cell interference will degrade system capacity. We propose large-scale coordinated multi-user multiple-input multiple-output (LSC-MU-MIMO), which combines MU-MIMO with joint transmission from all the TPs connected to a centralized baseband unit. We previously investigated the downlink performance of LSC-MU-MIMO by computer simulation and found that it can significantly reduce inter-TP interference and improve the system capacity of high-density small cells. In this paper, we investigate the throughput of LSC-MU-MIMO through an indoor trial where the number of coordinated TPs is up to sixteen by using an experimental system that can execute real-time channel estimation based on TDD reciprocity and real-time data transmission. To clarify the improvement in the system capacity of LSC-MU-MIMO, we compared the throughput measured in the same experimental area with and without coordinated transmission in 4-TP, 8-TP, and 16-TP configurations. The results show that with coordinated transmission the system capacity is almost directly proportional to the number of TPs.},
keywords={},
doi={10.1587/transcom.2018TTP0012},
ISSN={1745-1345},
month={August},}
부
TY - JOUR
TI - Experimental Study of Large-Scale Coordinated Multi-User MIMO for 5G Ultra High-Density Distributed Antenna Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 1390
EP - 1400
AU - Takaharu KOBAYASHI
AU - Masafumi TSUTSUI
AU - Takashi DATEKI
AU - Hiroyuki SEKI
AU - Morihiko MINOWA
AU - Chiyoshi AKIYAMA
AU - Tatsuki OKUYAMA
AU - Jun MASHINO
AU - Satoshi SUYAMA
AU - Yukihiko OKUMURA
PY - 2019
DO - 10.1587/transcom.2018TTP0012
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E102-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2019
AB - Fifth-generation mobile communication systems (5G) must offer significantly higher system capacity than 4G in order to accommodate the rapidly increasing mobile data traffic. Cell densification has been considered an effective way to increase system capacity. Unfortunately, each user equipment (UE) will be in line-of-sight to many more transmission points (TPs) and the resulting inter-cell interference will degrade system capacity. We propose large-scale coordinated multi-user multiple-input multiple-output (LSC-MU-MIMO), which combines MU-MIMO with joint transmission from all the TPs connected to a centralized baseband unit. We previously investigated the downlink performance of LSC-MU-MIMO by computer simulation and found that it can significantly reduce inter-TP interference and improve the system capacity of high-density small cells. In this paper, we investigate the throughput of LSC-MU-MIMO through an indoor trial where the number of coordinated TPs is up to sixteen by using an experimental system that can execute real-time channel estimation based on TDD reciprocity and real-time data transmission. To clarify the improvement in the system capacity of LSC-MU-MIMO, we compared the throughput measured in the same experimental area with and without coordinated transmission in 4-TP, 8-TP, and 16-TP configurations. The results show that with coordinated transmission the system capacity is almost directly proportional to the number of TPs.
ER -