TY - GEN
T1 - 140 bpS/Hz 16 × 16 MIMO whole azimuth beam steering array for connected car applications
AU - Fukushima, Taiki
AU - Honda, Kazuhiro
AU - Ogawa, Koichi
N1 - Publisher Copyright:
© 2018 IEICE
PY - 2018/7/2
Y1 - 2018/7/2
N2 - To achieve a channel capacity of over 10 Gbps for use in forthcoming connected car systems, a 16 × 16 multiple-input multiple-output (MIMO) antenna system was developed, which is a version-up approach of our 4 × 4 MIMO circular phased array technology. The 16 × 16 MIMO array comprises four circular phased array 4 × 4 MIMO antennas. In the antenna system, the desired directivity of 16 subarrays is varied via the electromagnetic coupling. Therefore, the radius r of the 16 × 16 MIMO array is designed to increase the channel capacity. The results show that when r is greater than 24 cm, a high channel capacity over 140 bits/s/Hz is realized for the SNR of 30 dB with a small variation in the channel capacity depending on the direction of the incoming wave, owing to the large gain of all the subarrays in the communication direction. Thus, when the bandwidth is 100 MHz, 14-Gbps high-speed inter-vehicle communications can be achieved using the proposed antenna.
AB - To achieve a channel capacity of over 10 Gbps for use in forthcoming connected car systems, a 16 × 16 multiple-input multiple-output (MIMO) antenna system was developed, which is a version-up approach of our 4 × 4 MIMO circular phased array technology. The 16 × 16 MIMO array comprises four circular phased array 4 × 4 MIMO antennas. In the antenna system, the desired directivity of 16 subarrays is varied via the electromagnetic coupling. Therefore, the radius r of the 16 × 16 MIMO array is designed to increase the channel capacity. The results show that when r is greater than 24 cm, a high channel capacity over 140 bits/s/Hz is realized for the SNR of 30 dB with a small variation in the channel capacity depending on the direction of the incoming wave, owing to the large gain of all the subarrays in the communication direction. Thus, when the bandwidth is 100 MHz, 14-Gbps high-speed inter-vehicle communications can be achieved using the proposed antenna.
KW - 16 × 16 MIMO antenna
KW - Beam steering
KW - Channel capacity
KW - Channel gain
KW - Circular array
KW - Connected car
UR - http://www.scopus.com/inward/record.url?scp=85061767091&partnerID=8YFLogxK
U2 - 10.23919/APMC.2018.8617425
DO - 10.23919/APMC.2018.8617425
M3 - 会議への寄与
AN - SCOPUS:85061767091
T3 - Asia-Pacific Microwave Conference Proceedings, APMC
SP - 503
EP - 505
BT - 2018 Asia-Pacific Microwave Conference, APMC 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 30th Asia-Pacific Microwave Conference, APMC 2018
Y2 - 6 November 2018 through 9 November 2018
ER -