Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Juyul Lee"'
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 17, Iss 6, Pp 443-453 (2023)
Abstract For 5G beyond and/or 6G mobile services, a new spectrum at frequencies above 100 GHz has received great attention lately. To characterise the similarities and the differences between frequencies below 100 GHz and above 100 GHz, this paper pr
Externí odkaz:
https://doaj.org/article/db77be20cefa4957b3b5849c1b06fa9a
Publikováno v:
ETRI Journal, Vol 43, Iss 3, Pp 377-388 (2021)
Owing to the difficulties associated with conducting millimeter‐wave (mmWave) field measurements, especially in high‐speed train (HST) environments, most propagation channels for mmWave HST have been studied using methods based on simulation rath
Externí odkaz:
https://doaj.org/article/be7db318e56e4ccc86c352bc9e9e07c5
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 191-202 (2021)
Propagation graph (PG) is a stochastic channel simulation method for scattering propagation. In this article, an embedded-PG (EPG) approach, an extension of conventional PG, is proposed to simulate reflection and scattering multi-path behaviors in wi
Externí odkaz:
https://doaj.org/article/d97cc0d7f65b4b1e994f749212c91157
Publikováno v:
ETRI Journal, Vol 42, Iss 6, Pp 827-836 (2020)
Measuring the diffraction loss for high frequencies, long distances, and large diffraction angles is difficult because of the high path loss. Securing a well‐controlled environment to avoid reflected waves also makes long‐range diffraction measur
Externí odkaz:
https://doaj.org/article/6a4b61de2b924fe5b4a9c51a9e642485
Publikováno v:
IEEE Access, Vol 8, Pp 151267-151278 (2020)
Cluster tracking is a mainstream approach for the study of time-variant channel characteristics. In the paper, we propose a power spectrum based sequential tracker (PSBST) to compensate for the disadvantages of existing cluster tracking algorithms. T
Externí odkaz:
https://doaj.org/article/cf606be3238840d8a4af96d471f606a5
Publikováno v:
ETRI Journal, Vol 42, Iss 1, Pp 7-16 (2019)
Assuming omnidirectional antenna reception, the ITU‐R recently developed a new propagation model on building entry loss (BEL) for 5G millimeter‐wave frequency sharing and compatibility studies, which is a simplified outdoor‐to‐indoor path los
Externí odkaz:
https://doaj.org/article/d43075dda41f4907bbeb550f41beede4
Publikováno v:
IEEE Access, Vol 7, Pp 150492-150504 (2019)
Most outdoor-to-indoor (O2I) propagation studies in millimeter-wave (mmWave) frequency bands have been focused on power loss characteristics such as building penetration and building entry losses. To provide robust traffic services, knowledge of the
Externí odkaz:
https://doaj.org/article/1212160bd08d47b3b7f51e0334dc1f92
Publikováno v:
ETRI Journal, Vol 40, Iss 1, Pp 26-38 (2018)
To overcome considerable path loss in millimeter‐wave propagation, high‐gain directional beamforming is considered to be a key enabling technology for outdoor 5G mobile networks. Associated with beamforming, this paper investigates propagation po
Externí odkaz:
https://doaj.org/article/90ddd6b3cebe4227940537743dcd3fa6
Publikováno v:
International Journal of Antennas and Propagation, Vol 2015 (2015)
This paper presents a NLOS (non-line-of-sight) path loss model for low-height antenna links in rectangular street grids to account for typical D2D (device-to-device) communication link situations in high-rise urban outdoor environments. From wideband
Externí odkaz:
https://doaj.org/article/fbe0bd7789684a3b955b79eeb9d10673
Autor:
Fan Yu, Xuefeng Yin, Mingqi Guo, José Rodríguez-Piñeiro, Juyul Lee, Jingxiang Hong, Myung-Dom Kim
Publikováno v:
IEEE Communications Letters. 27:1387-1391
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbaf0013674d054f2a883e7306de1d9a
https://doi.org/10.1109/lcomm.2023.3263646
https://doi.org/10.1109/lcomm.2023.3263646