Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Teruya Fujii"'
Autor:
Kenji Hoshino, Teruya Fujii
Publikováno v:
VTC Spring
In 5G mobile communication systems, the beamforming technology is used with massive antenna elements to improve the received power and spectral efficiency within a cell. To improve the throughput of the entire system, it is also necessary to improve
Publikováno v:
2020 International Symposium on Antennas and Propagation (ISAP).
We predicted the clutter loss between a base station high up in the sky and a terrestrial mobile station in urban areas. In order to clarify the elevation angle characteristics of clutter loss at 100 GHz, the physical model using assumption of diffus
Publikováno v:
VTC-Fall
HAPS (High Altitude Platform Station), which is a stratosphere platform around 20Km altitude, cellular communication service makes it possible to directly communicate among ordinary land cellular phones. HAPS is also a promising system for service ar
Publikováno v:
VTC Spring
HAPS (High Altitude Platform Station), which is a stratosphere-based (around 20km altitude) platform, offers cellular communication service that directly links existing cellular phones. HAPS is also a promising system for service area expansion as we
Publikováno v:
IEICE Transactions on Communications. :885-896
Publikováno v:
IEICE Transactions on Communications. :195-202
Publikováno v:
IEICE Transactions on Communications. :372-379
Publikováno v:
2018 IEEE International Workshop on Electromagnetics:Applications and Student Innovation Competition (iWEM).
In order to overcome the increasing traffic problems of mobile terminals used in high-rise offices of buildings, 3D cell layout which is extended 2D cell layout on the ground to height direction is attracting attention. It is thus necessary for const
Publikováno v:
VTC Spring
In deploying co-channel heterogeneous networks, which use the same frequency band for both macro and small cells, it is essential to avoid mutual interference. This can be achieved by enhanced Inter-Cell Interference Coordination (eICIC), in which so
Publikováno v:
VTC Spring
Recently, mobile video streaming services become very popular. MPEG-DASH is one of the streaming schemes used for the service. In this method, a mobile terminal tries to download video chunks from a streaming server by estimating the available bandwi