Indoor Experiments on 4-by-2 Multi-User MIMO and Carrier Aggregation Achieving Real-Time 1-Gbps Data Transmission in LTE-Advanced Downlink

Yuichi KAKISHIMA; Teruo KAWAMURA; Yoshihisa KISHIYAMA; Hidehiro ANDOH

doi:10.1587/transfun.E97.A.109

Indoor Experiments on 4-by-2 Multi-User MIMO and Carrier Aggregation Achieving Real-Time 1-Gbps Data Transmission in LTE-Advanced Downlink

Yuichi KAKISHIMA, Teruo KAWAMURA, Yoshihisa KISHIYAMA, Hidehiro ANDOH

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This paper presents indoor experimental results on 4-by-2 multi-user (MU)-MIMO transmission with carrier aggregation (90-MHz bandwidth) achieving real-time 1-Gbps data transmission using adaptive modulation and coding (AMC) in the LTE-Advanced downlink employing OFDMA radio access. In the experiments, eigenvalue decomposition (EVD)-based channel state information (CSI) feedback based on subband unit for MU-MIMO operation and inter-user interference whitening filter applied before maximum likelihood detection (MLD) are employed to achieve such a high data rate with realistic numbers of transmitter and receiver antennas. The indoor experiments are conducted in a conference room under line-of-sight conditions with multiple reflected waves where one mobile station (MS) travels at walking speed and the other MS is static. The experimental results show that the total throughput for the 2 MSs is greater than 1Gbps at the average received signal-to-interference plus noise power ratio (SINR) of approximately 25 and 17dB for the first and second streams of each MS, respectively, when the moving speed is up to approximately 1km/h. The results also show that a centralized transmitter antenna arrangement is more effective in order to achieve a high data rate such as 1Gbps compared to a distributed antenna arrangement for the measurement environment.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E97-A No.1 pp.109-116

Publication Date: 2014/01/01

Publicized

Online ISSN: 1745-1337

DOI: 10.1587/transfun.E97.A.109

Type of Manuscript: Special Section PAPER (Special Section on Wideband Systems)

Category: Implementation

Authors

Yuichi KAKISHIMA
  NTT DOCOMO, INC.
Teruo KAWAMURA
  NTT DOCOMO, INC.
Yoshihisa KISHIYAMA
  NTT DOCOMO, INC.
Hidehiro ANDOH
  NTT DOCOMO, INC.

Keyword

LTE-Advanced, OFDMA, multi-user MIMO, antenna arrangement, indoor experiment

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Yuichi KAKISHIMA, Teruo KAWAMURA, Yoshihisa KISHIYAMA, Hidehiro ANDOH, "Indoor Experiments on 4-by-2 Multi-User MIMO and Carrier Aggregation Achieving Real-Time 1-Gbps Data Transmission in LTE-Advanced Downlink" in IEICE TRANSACTIONS on Fundamentals, vol. E97-A, no. 1, pp. 109-116, January 2014, doi: 10.1587/transfun.E97.A.109.
Abstract: This paper presents indoor experimental results on 4-by-2 multi-user (MU)-MIMO transmission with carrier aggregation (90-MHz bandwidth) achieving real-time 1-Gbps data transmission using adaptive modulation and coding (AMC) in the LTE-Advanced downlink employing OFDMA radio access. In the experiments, eigenvalue decomposition (EVD)-based channel state information (CSI) feedback based on subband unit for MU-MIMO operation and inter-user interference whitening filter applied before maximum likelihood detection (MLD) are employed to achieve such a high data rate with realistic numbers of transmitter and receiver antennas. The indoor experiments are conducted in a conference room under line-of-sight conditions with multiple reflected waves where one mobile station (MS) travels at walking speed and the other MS is static. The experimental results show that the total throughput for the 2 MSs is greater than 1Gbps at the average received signal-to-interference plus noise power ratio (SINR) of approximately 25 and 17dB for the first and second streams of each MS, respectively, when the moving speed is up to approximately 1km/h. The results also show that a centralized transmitter antenna arrangement is more effective in order to achieve a high data rate such as 1Gbps compared to a distributed antenna arrangement for the measurement environment.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/transfun.E97.A.109/_p

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@ARTICLE{e97-a_1_109,
author={Yuichi KAKISHIMA, Teruo KAWAMURA, Yoshihisa KISHIYAMA, Hidehiro ANDOH, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Indoor Experiments on 4-by-2 Multi-User MIMO and Carrier Aggregation Achieving Real-Time 1-Gbps Data Transmission in LTE-Advanced Downlink},
year={2014},
volume={E97-A},
number={1},
pages={109-116},
abstract={This paper presents indoor experimental results on 4-by-2 multi-user (MU)-MIMO transmission with carrier aggregation (90-MHz bandwidth) achieving real-time 1-Gbps data transmission using adaptive modulation and coding (AMC) in the LTE-Advanced downlink employing OFDMA radio access. In the experiments, eigenvalue decomposition (EVD)-based channel state information (CSI) feedback based on subband unit for MU-MIMO operation and inter-user interference whitening filter applied before maximum likelihood detection (MLD) are employed to achieve such a high data rate with realistic numbers of transmitter and receiver antennas. The indoor experiments are conducted in a conference room under line-of-sight conditions with multiple reflected waves where one mobile station (MS) travels at walking speed and the other MS is static. The experimental results show that the total throughput for the 2 MSs is greater than 1Gbps at the average received signal-to-interference plus noise power ratio (SINR) of approximately 25 and 17dB for the first and second streams of each MS, respectively, when the moving speed is up to approximately 1km/h. The results also show that a centralized transmitter antenna arrangement is more effective in order to achieve a high data rate such as 1Gbps compared to a distributed antenna arrangement for the measurement environment.},
keywords={},
doi={10.1587/transfun.E97.A.109},
ISSN={1745-1337},
month={January},}

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TY - JOUR
TI - Indoor Experiments on 4-by-2 Multi-User MIMO and Carrier Aggregation Achieving Real-Time 1-Gbps Data Transmission in LTE-Advanced Downlink
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 109
EP - 116
AU - Yuichi KAKISHIMA
AU - Teruo KAWAMURA
AU - Yoshihisa KISHIYAMA
AU - Hidehiro ANDOH
PY - 2014
DO - 10.1587/transfun.E97.A.109
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E97-A
IS - 1
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - January 2014
AB - This paper presents indoor experimental results on 4-by-2 multi-user (MU)-MIMO transmission with carrier aggregation (90-MHz bandwidth) achieving real-time 1-Gbps data transmission using adaptive modulation and coding (AMC) in the LTE-Advanced downlink employing OFDMA radio access. In the experiments, eigenvalue decomposition (EVD)-based channel state information (CSI) feedback based on subband unit for MU-MIMO operation and inter-user interference whitening filter applied before maximum likelihood detection (MLD) are employed to achieve such a high data rate with realistic numbers of transmitter and receiver antennas. The indoor experiments are conducted in a conference room under line-of-sight conditions with multiple reflected waves where one mobile station (MS) travels at walking speed and the other MS is static. The experimental results show that the total throughput for the 2 MSs is greater than 1Gbps at the average received signal-to-interference plus noise power ratio (SINR) of approximately 25 and 17dB for the first and second streams of each MS, respectively, when the moving speed is up to approximately 1km/h. The results also show that a centralized transmitter antenna arrangement is more effective in order to achieve a high data rate such as 1Gbps compared to a distributed antenna arrangement for the measurement environment.
ER -