Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Woo-Hee Lim"'
Publikováno v:
Engineering Science and Technology, an International Journal, Vol 52, Iss , Pp 101676- (2024)
A new mmWave transmitter architecture with multibeam-based segmented beamforming arrays (SBAs) for high-efficiency and secure communication is proposed. Unlike convetional communication architecture, which transmits a high-order QAM signal through a
Externí odkaz:
https://doaj.org/article/95164839494642abbe8e86952ca5bd56
Publikováno v:
Alexandria Engineering Journal, Vol 78, Iss , Pp 584-591 (2023)
In this paper, a high gain circularly-polarized antenna array with a flat panel structure for low Earth orbit (LEO) satellite communication systems is proposed. This new CP structure can efficiently achieve high directivity and can easily be integrat
Externí odkaz:
https://doaj.org/article/3c33b0a17c0040f5a89a387b9953be53
ZF-Based Downlink Hybrid Precoding and Combining for Rate Balancing in mmWave Multiuser MIMO Systems
Publikováno v:
IEEE Access, Vol 9, Pp 162731-162742 (2021)
This paper proposes a new design strategy for hybrid precoding and combining in the downlink of millimeter wave (mmWave) multiuser multiple-input multiple-output (MU-MIMO) channels. When channel state information is available at the transmitter, the
Externí odkaz:
https://doaj.org/article/8a7ee5ff6adb4349abb3be0c0b92c868
Publikováno v:
IEEE Transactions on Vehicular Technology. 72:6404-6411
Autor:
Woo Hee Lim, Su Wan Kim
Publikováno v:
Journal of Medicine and Life Science. 17:25-28
Publikováno v:
2022 International Conference on Electronics, Information, and Communication (ICEIC).
Publikováno v:
Journal of Medicine and Life Science, Vol 20, Iss 4, Pp 172-177 (2023)
This study assessed risk factors for blood transfusion after Cesarean section in patients with partial placenta previa. We retrospectively reviewed the medical records of 149 patients who underwent Cesarean sections for partial placenta previa betwee
Externí odkaz:
https://doaj.org/article/f8009b665e304908bca16b77e48489cc