Zobrazeno 1 - 10
of 534
pro vyhledávání: '"Ke GUAN"'
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 17, Iss 6, Pp 415-418 (2023)
Externí odkaz:
https://doaj.org/article/3cfffc5ca5104880bb3f6f25690c1993
Autor:
Tingting Yang, Yating Wang, Xiaoke Zhang, Siyun Xiang, Jing Wen, Wen Wang, Ke Guan, Weixiang Wang, Yang Yang, Liuwei Hao, Yongchun Chen
Publikováno v:
Frontiers in Endocrinology, Vol 14 (2023)
BackgroundCarotid intima-media thickness (CIMT) has been shown to be a valuable predictor of cardiovascular diseases (CVDs). The aim of this study was to investigate the influencing factors of CIMT among adults in Central China.MethodsA total of 2,57
Externí odkaz:
https://doaj.org/article/ea7084d2e54f4629b2de47dcbca0974e
Publikováno v:
IET Signal Processing, Vol 16, Iss 7, Pp 800-810 (2022)
Abstract This paper investigates an advanced effective signal processing technique to suppress noise, addressing a modern high‐performance detection in the field of radar sensing. To achieve a higher accuracy, the frequency modulated continuous wav
Externí odkaz:
https://doaj.org/article/0a3bd844e6414afd86793dd8790b54d4
Publikováno v:
Tongxin xuebao, Vol 43, Pp 34-48 (2022)
Firstly, the different characteristics of terahertz waves compared to lower frequency bands were summarized, including the influence of meteorological factors and rough surfaces of materials on THz waves.Next, it was proposed to use ray-tracing (RT)
Externí odkaz:
https://doaj.org/article/ff8d6f24fde74fcca66c1f66439081e6
Autor:
Hao Qiu, Juan Moreno Garcia-Loygorri, Ke Guan, Danping He, Ziheng Xu, Bo Ai, Marion Berbineau
Publikováno v:
IEEE Access, Vol 9, Pp 1512-1523 (2021)
Radio access technologies (RATs) are a key topic in railways, enabling them a better service rendering in terms of shorter headways between trains, higher safety levels and higher customer satisfaction. Very often, these railway RATs need a lot of ti
Externí odkaz:
https://doaj.org/article/b8610a6d2e234b7885a1561659188b81
Autor:
Vittorio Degli-Esposti, Franco Fuschini, Henry L. Bertoni, Reiner S. Thoma, Thomas Kurner, Xuefeng Yin, Ke Guan
Publikováno v:
IEEE Access, Vol 9, Pp 67660-67666 (2021)
The demand for ever-increasing wireless data transmission rates and throughput area-densities, especially with regard to microcellular networks, internet access, back-hauling, inter-device transmission, and sensing applications, has spurred the explo
Externí odkaz:
https://doaj.org/article/f02144a5b7b54c4ea321511599465d96
Autor:
Junhyeong Kim, Guido Casati, Nicolas Cassiau, Antonio Pietrabissa, Alessandro Giuseppi, Dong Yan, Emilio Calvanese Strinati, Marjorie Thary, Danping He, Ke Guan, Heesang Chung, Ilgyu Kim
Publikováno v:
ETRI Journal, Vol 42, Iss 5, Pp 669-688 (2020)
5G AgiLe and fLexible integration of SaTellite And cellulaR (5G‐ALLSTAR) is a Korea‐Europe (KR‐EU) collaborative project for developing multi‐connectivity (MC) technologies that integrate cellular and satellite networks to provide seamless, r
Externí odkaz:
https://doaj.org/article/7af0c916972d4fbeb16e56d710237003
Publikováno v:
IEEE Access, Vol 8, Pp 53162-53171 (2020)
Vehicle-to-infrastructure (V2I) communication is an important enabler for intelligent transportation and rail traffic management systems, which are expected to provide significant road traffic safety and efficiency enhancements. Such systems require
Externí odkaz:
https://doaj.org/article/18094ae3b8ac4831b213c55a0fcd2539
Publikováno v:
IEEE Access, Vol 8, Pp 82042-82053 (2020)
To develop an millimeter-waves (mm-waves) channel model for in-room access scenarios, a double-directional channel measurement campaign conducted in a conference room environment is presented. In the measurements, a custom-developed channel sounder w
Externí odkaz:
https://doaj.org/article/4d4e8b4b0b5b4104ba58a2d79a63a94e
Publikováno v:
IEEE Access, Vol 8, Pp 110565-110574 (2020)
In order to implement unmanned aerial vehicle (UAV)-based wireless communications, a better understanding of wireless channels and the corresponding channel characterizations are critical. In this paper, air-to-ground (AG) channel measurements are ca
Externí odkaz:
https://doaj.org/article/ffecb345330f4207a86d8d0fec2ddc85