Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Takeo Ohseki"'
Autor:
Thomas Choi, Masaaki Ito, Issei Kanno, Jorge Gomez-Ponce, Colton Bullard, Takeo Ohseki, Kosuke Yamazaki, Andreas F. Molisch
Publikováno v:
IEEE Open Journal of Circuits and Systems, Vol 2, Pp 792-804 (2021)
Cell-free massive MIMO (CF-mMIMO) provides wireless connectivity for a large number of user equipments (UEs) using access points (APs) distributed across a wide area with high spectral efficiency (SE). The energy efficiency (EE) of the uplink is dete
Externí odkaz:
https://doaj.org/article/539619bc60414377bd231da5cea7c462
Publikováno v:
2023 IEEE Wireless Communications and Networking Conference (WCNC).
Publikováno v:
2023 IEEE Wireless Communications and Networking Conference (WCNC).
Publikováno v:
GLOBECOM 2022 - 2022 IEEE Global Communications Conference.
We consider a scalable user-centric cell-free massive MIMO network with distributed remote radio units (RUs), enabling macrodiversity and joint processing. Due to the limited uplink (UL) pilot dimension, multiuser interference in the UL pilot transmi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a96e91da5a78034961ac6d360f164d01
http://arxiv.org/abs/2206.03801
http://arxiv.org/abs/2206.03801
Autor:
Issei Kanno, Masaaki Ito, Takeo Ohseki, Kosuke Yamazaki, Yoji Kishi, Thomas Choi, Wei-Yu Chen, Andreas F. Molisch
Publikováno v:
2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring).
Publikováno v:
2022 IEEE Wireless Communications and Networking Conference (WCNC).
We consider a scalable user-centric wireless network with dynamic cluster formation as defined by Bj\"ornsson and Sanguinetti. After having shown the importance of dominant channel subspace information for uplink (UL) pilot decontamination and having
Cell-free massive MIMO is a variant of multiuser MIMO and massive MIMO, in which the total number of antennas $LM$ is distributed among the $L$ remote radio units (RUs) in the system, enabling macrodiversity and joint processing. Due to pilot contami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::612a98fc8bb3e77fc45f12db63bbacd5
Autor:
Kosuke Yamazaki, Takeo Ohseki, Yoshiaki Amano, Hiroyuki Shinbo, Takahide Murakami, Yoji Kishi
Publikováno v:
2021 ITU Kaleidoscope: Connecting Physical and Virtual Worlds (ITU K).
Evaluation on Energy Efficiency of UE in UL Cell-Free Massive MIMO System With Power Control Methods
Autor:
Masaaki Ito, Issei Kanno, Takeo Ohseki, Kosuke Yamazaki, Yoji Kishi, Thomas Choi, Andreas F. Molisch
Publikováno v:
2021 IEEE Globecom Workshops (GC Wkshps).
Cell-free massive multiple-input multiple-output (CF mMIMO) systems are expected to provide faster and more robust connections to user equipments (UEs) by cooperation of a massive number of distributed access points, and to be one of the key technolo