Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Masaaki Tanio"'
Publikováno v:
IEEE Access, Vol 12, Pp 130995-131007 (2024)
We propose a wideband model-embedding delta-sigma radio-over-fiber (DS-RoF) design for keeping the adjacent channel leakage low. This RoF design is derived on the basis of the DS-RoF embedding a pulse-distortion model (PDM). To enable wideband modula
Externí odkaz:
https://doaj.org/article/8bdd0bc61b1a4d13bda395ea27061941
Publikováno v:
IEEE Access, Vol 10, Pp 114673-114682 (2022)
In this paper, an efficient neural-network-based adaptive DPD design which performs well under power varying conditions is presented. The DPD design is derived on the basis of the envelop time-delay neural network (ETDNN). The redefined ETDNN-DPD req
Externí odkaz:
https://doaj.org/article/a476ac490a684c35bcf18ae4a11352af
Publikováno v:
IEEE Access, Vol 8, Pp 117841-117852 (2020)
This paper proposes an efficient neural-network-based digital predistortion (DPD), named as envelope time-delay neural network (ETDNN) DPD. The method complies with the physical characteristics of radio-frequency (RF) power amplifiers (PAs) and uses
Externí odkaz:
https://doaj.org/article/e854dca8bc8a435d83540f49b6b36665
Autor:
Paul R. Prucnal, Masaaki Tanio, Hussam G. Batshon, Chaoran Huang, Naoto Ishii, Thomas Ferreira de Lima, Shinsuke Fujisawa, Yoshihisa Inada, Ting Wang, Norifumi Kamiya, Fatih Yaman
Publikováno v:
Journal of Lightwave Technology. 40:1273-1282
Neural networks (NNs) are attractive for nonlinear impairment compensation applications in communication systems, such as optical fiber nonlinearity, nonlinearity of driving amplifiers, and nonlinearity of semiconductor optical amplifiers. Without pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0108cd3f34ce3748a2565196deacc293
https://doi.org/10.1109/jlt.2021.3117609
https://doi.org/10.1109/jlt.2021.3117609
Publikováno v:
2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b1f0df930adfb45aec6f64d9eef505c
https://doi.org/10.1109/vtc2022-fall57202.2022.10013014
https://doi.org/10.1109/vtc2022-fall57202.2022.10013014
Publikováno v:
2019 49th European Microwave Conference (EuMC).
A reduced-complexity symmetric Doherty power amplifier (PA) for 60 GHz band is demonstrated in 45nm CMOS silicon on insulator. The output network is synthesized for reduced components to obtain low combiner loss and high back-off efficiency. The achi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b5a4a7aaf25692d823bda46fd438971
https://doi.org/10.23919/eumc.2019.8910860
https://doi.org/10.23919/eumc.2019.8910860
Autor:
Masaaki Tanio, Shinichi Hori, Tomoya Kaneko, Tatsuya Soma, Hidemi Noguchi, Noriaki Tawa, Soubhik Deb, Keiichi Motoi, Kazuaki Kunihiro
Publikováno v:
Scopus-Elsevier
This paper presents a 1-bit digital transmitter system with voltage-mode class-D digital power amplifiers (DPA) and an FPGA-based 1-bit modulator for the first time. The DPA employs quadruple cascode configuration with 45 nm SOI CMOS process to incre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51b4239873b4babfc9073f9ae7795a0f
https://doi.org/10.1109/mwsym.2019.8700847
https://doi.org/10.1109/mwsym.2019.8700847
Publikováno v:
2018 48th European Microwave Conference (EuMC).
This paper presents a novel band-limited digital predistortion (BL-DPD) with band-switching feedback architecture and update procedure for linearization of a wideband 5G mmWave power amplifier (PA). In the proposed BL-DPD, inside and outside of origi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5065155fb19c31d59330b5e07331dece
https://doi.org/10.23919/eumc.2018.8541784
https://doi.org/10.23919/eumc.2018.8541784
Publikováno v:
2018 48th European Microwave Conference (EuMC).
This paper describes the indoor experimental verification testing results and discussion of a 28 GHz multi-user (MU) multiple-input multiple-output (MIMO) using the 360 element full-digital massive MIMO active antenna system (AAS) for 5G base station
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4c6f1d23d57907f9b46df7955ffc187
https://doi.org/10.23919/eumc.2018.8541719
https://doi.org/10.23919/eumc.2018.8541719
Publikováno v:
2018 IEEE/MTT-S International Microwave Symposium - IMS.
An FPGA-based 1-bit digital transmitter with an 800-MHz bandwidth is presented for 5G millimeter wave (mmW) active antenna systems (AASs). To achieve over 20-GHz operation of the 2nd-order delta sigma modulator (DSM), a two-stage time-in-terleaved ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41d879c1090931e42cc7eb190be8c6c2
https://doi.org/10.1109/mwsym.2018.8439663
https://doi.org/10.1109/mwsym.2018.8439663