Distinguished Researcher Wataru Yamada | NTT Access Network Service Systems Laboratories | NTT R&D Website
consistently engaged in the research and development of radio wave propagation technology since entering NTT
https://www.rd.ntt/e/as/team_researchers/researcher/04.html
Overcoming the Limits on Radio-frequency Resources by Developing the Real-time Wireless-quality-estimation Platform that Applies Quantum Annealing and Other Technologies to Radio-wave Propagation | NTT R&D Website
-estimation Platform that Applies Quantum Annealing and Other Technologies to Radio-wave Propagation | NTT R&D
https://www.rd.ntt/e/research/JN202501_31210.html
Motoharu Sasaki | NTT R&D Website
radio wave propagation characteristics I aim to establish an instantaneous estimation technology and
https://www.rd.ntt/e/organization/researcher/special/s_069.html
Achieving Complete Wireless Communication through Estimation and Prediction Technology for Radio Wave Propagation Characteristics | NTT R&D Website
Wireless Communication through Estimation and Prediction Technology for Radio Wave Propagation
https://www.rd.ntt/e/research/JN202402_25001.html
佐々木 元晴 | NTT R&D Website
. Yamada, X. Raimundo, and A. A. Cheema, "Radio propagation measurements and modeling for standardization
https://www.rd.ntt/organization/researcher/special/s_069.html
F15_leaf_e.pdf
waves, we aim to realize interference-free transmission with flexible radio wave propagation area
https://www.rd.ntt/forum/2023/doc/F15_leaf_e.pdf
Wave Propagation Laboratory | NTT Network Innovation Laboratories | NTT R&D Website
propagation loss, radio beamforming using massive antenna arrays with thousands to tens of thousands of
https://www.rd.ntt/e/mirai/organization/product_3/
Yasushi Takatori | NTT R&D Website
Okumura, Motoharu Sasaki, and Yasushi Takatori, "Radio Propagation Prediction Method Using Point Cloud
https://www.rd.ntt/e/organization/researcher/superior/s_029.html
鷹取 泰司 | NTT R&D Website
, Motoharu Sasaki, and Yasushi Takatori, "Radio Propagation Prediction Method Using Point Cloud Data Based on
https://www.rd.ntt/organization/researcher/superior/s_029.html
Doohwan Lee | NTT R&D Website
Multishape Radio Technologies: Shaping Electromagnetic Waves for Next-Generation Wireless Communications I am
https://www.rd.ntt/e/organization/researcher/superior/s_034.html
Standardization Trends Related to Wireless Communications | NTT R&D Website
; and ITU-R SG 3, working on radio-wave propagation, which supports the studies being undertaken by the
https://www.rd.ntt/e/research/JN202311_23704.html
Efficiently Accommodating High-frequency-band Wireless Systems by Using Analog Radio-over-fiber | NTT R&D Website
*1), which can secure a wide bandwidth. However, the propagation distance of radio waves becomes
https://www.rd.ntt/e/research/JN20200315_h.html
Wireless Technology Supporting People to Live a Fulfilling Social Life | NTT R&D Website
accuracy of estimating radio propagation with Cradio® and the accuracy of the conversion of a BIM data file
https://www.rd.ntt/e/research/JN202408_28848.html
Achieving the Word's Highest Wireless Transmission Rate by Delving into Theories That Appeared about 100 Years Ago | NTT R&D Website
of fields-including research on radio-wave propagation, suppression and control of interference, and
https://www.rd.ntt/e/research/JN202403_25301.html
Wireless Technologies for Accelerating High-capacity Transmission, Low Energy, and Application-area Expansion | NTT R&D Website
wireless signals. This is because radio-propagation loss increases in higher frequency bands such as
https://www.rd.ntt/e/research/JN202307_22290.html
Researchers Should Take Every Experience as a Positive One to Improve Their Well-being | NTT R&D Website
identify the characteristics of radio-wave propagation by measuring such propagation in field experiments
https://www.rd.ntt/e/research/JN202410_29838.html
Research and Development for Pioneering a New Communications Paradigm with Wide-area Coverage | NTT R&D Website
including light, radio, and sound waves and enable long-distance, high-speed, and high-capacity transmission
https://www.rd.ntt/e/research/JN202205_18109.html
Achieving IOWN/6G and Creating New Value with World-leading Technologies | NTT R&D Website
media, using physical waves in various frequency bands such as optical, radio, and acoustic waves
https://www.rd.ntt/e/research/JN202405_26173.html
Tomoki Murakami | NTT R&D Website
Research of Intelligent Radio-wave Design We have been researching “Intelligent Radio-wave Design” that
https://www.rd.ntt/e/organization/researcher/special/s_063.html
R&D Activities of Core Wireless Technologies toward 6G Radio Access | NTT R&D Website
distortion. Due to the extremely slow propagation speed of sound waves compared with radio waves, waveform
https://www.rd.ntt/e/research/JN202205_18140.html
Wireless Systems Technologies for Present and Future Services | NTT R&D Website
performing actual signal-propagation measurements to formulate a radio propagation model. We are also
https://www.rd.ntt/e/research/JN20200267_h.html
Wireless Technology for Extreme NaaS—Remote Beamforming Schemes for Analog Radio-over-fiber-based High-frequency-band Wireless Communication Systems|NTT R&D Website
propagation loss is significant. To enable beamforming with simplified remote radio units that have no signal
https://www.rd.ntt/e/research/JN202108_14917.html
Underwater acoustic communication technology
underwater drone radio control while checking underwater images in real time. Background / Issues The demand
https://www.rd.ntt/e/research/NI0064.html
Venture Out of the Laboratory and Test Your Research Results in the Real World|NTT R&D Website
wireless access by assessing various wireless conditions is called Multi-radio Proactive Control
https://www.rd.ntt/e/research/JN202110_15573.html
High-Speed Analog Circuit Research Group|Device Technology Laboratories|NTT R&D Website
propagation by manipulating the phase and amplitude of incident waves. The surface of a metasurface has a
https://www.rd.ntt/e/dtl/technology/high-speed_analog_circuit_research_group_ntt_device_technology_laboratories_ntt_rd_website.html
Underwater Acoustic Communication Technology for Wireless Remotely Operated Vehicles | NTT R&D Website
development and port construction. Radio waves are widely used in terrestrial wireless communication systems
https://www.rd.ntt/e/research/JN202306_22116.html
Position under active recruitment: Research and development related to extreme weather futures forecasting technology|Careers|NTT Space Environment and Energy Laboratories|NTT R&D Website
oceanography Basic knowledge of communication and radio wave propagation Basic knowledge of critical thinking
https://www.rd.ntt/e/se/recruitment/focus09.html
Wireless Technologies toward Extreme NaaS—Multi-radio Proactive Control Technologies (Cradio®)|NTT R&D Website
buildings and other structures combined with various types of radio-wave propagation models, ray tracing
https://www.rd.ntt/e/research/JN202108_14898.html
Wireless Technologies for Future Network Services Tailored to the Requirements of Various Users and Applications | NTT R&D Website
are researching and developing Cradio®-a set of multi-radio proactive control technologies that
https://www.rd.ntt/e/research/JN202207_18750.html
High-efficiency Wi-Fi Technologies|NTT R&D Website
high-density configuration, optimal channel settings to avoid radio-wave interference and tuning
https://www.rd.ntt/e/research/JN202112_16443.html
Yusuke Asai | NTT R&D Website
Shonihara and Yusuke Asai, "Real Time Reconstruction of Radio Environment Maps in Indoor Millimeter-Wave
https://www.rd.ntt/e/organization/researcher/special/s_084.html
High-frequency-band Distributed Antenna System Technology Exploring the Possibilities of Higher Frequency Bands for Mobile Communications | NTT R&D Website
propagation is unobstructed. Its disadvantage, however, is that radio waves are easily blocked by shielding
https://www.rd.ntt/e/research/JN202404_25756.html
A novel mechanical system for amplifying ultrasound signals|NTT Basic Research Laboratories | NTT R&D Website
engineer an ultrasound waveform can be applied to signal processing devices such as radio-frequency
https://www.rd.ntt/e/brl/latesttopics/2018/04/latest_topics_201804061205.html
R&D Activities to Implement an Access Network for the IOWN Era | NTT R&D Website
and the radio-wave-propagation characteristics of each frequency, it is possible to design and control
https://www.rd.ntt/e/research/JN202408_28842.html
李 斗煥 | NTT R&D Website
) IEEE Journal of Selected Topics in Electromagnetics, Antennas and Propagation (JSTEAP) Special Issue on
https://www.rd.ntt/organization/researcher/superior/s_034.html
Research and Development of Scalable Optical Transport Technologies | NTT R&D Website
) of the currently widely used SMF. When using multiple cores and propagation modes to transmit signals
https://www.rd.ntt/e/research/JN202205_18134.html
Satellite Sensing Platform | NTT R&D Website
satellite captures the IoT radio waves transmitted from terrestrial low-power wide-area terminals onboard
https://www.rd.ntt/e/research/JN202210_19891.html
Petabit-class Optical Transmission Using Spatial Multiplexing Technology Opens a New Era with a Paradigm Shift | NTT R&D Website
intuitive explanation for modal dispersion is like this: light propagation in a fiber is often likened to
https://www.rd.ntt/e/research/JN202302_20974.html
Low-latency and Energy Efficient Technologies for New Optical Access Networks | NTT R&D Website
of radio propagation distance. For example, in these severe climate environments, solar cells and
https://www.rd.ntt/e/research/JN202307_22288.html
Norio Kumada
confinement and propagation by tailoring its spatial conductivity. Here we demonstrate full electrical control
https://www.rd.ntt/brl/people/kumada/researchj.html
Norio Kumada
propagation by tailoring its spatial conductivity. Here we demonstrate full electrical control of plasmon
https://www.rd.ntt/brl/people/kumada/research.html
Updates | NTT R&D Website
Platform that Applies Quantum Annealing and Other Technologies to Radio-wave Propagation 03/27/2025 Cutting
https://www.rd.ntt/e/update_information/
アニーリングマシンを用いた超高速電波伝搬シミュレーション技術
/newsrelease/2022/12/05/221205a.html Globecom論文はこちら: Radio Propagation Analysis Using Quantum Annealing | IEEE
https://www.rd.ntt/as/history/wireless/wi0525.html
Set a Goal Differing from Those of Other People and Achieve It Using a Pivot Strategy|NTT R&D Website
—the world’s first—in electrically controlling the propagation of phonons by using a semiconductor MEMS
https://www.rd.ntt/e/research/JN202011_7957.html
wi0525.pdf
/newsrelease/2022/12/05/221205a.html Globecom 論文はこちら: Radio Propagation Analysis Using Quantum Annealing | IEEE
https://www.rd.ntt/as/history/pdf/wireless/wi0525.pdf
淺井 裕介 | NTT R&D Website
, Toshiro Nakahira, Shoko Shonihara and Yusuke Asai, "Real Time Reconstruction of Radio Environment Maps in
https://www.rd.ntt/organization/researcher/special/s_084.html
Keynote Speech 2|Report on the NTT R&D Forum 2021|NTT R&D Website
method of engineering radio waves so that they are reflected directly back to the source no matter from
https://www.rd.ntt/e/forum/2021/keynote_2.html
Nanomechanics: Outline and Future Prospects | NTT R&D Website
. Gigahertz (GHz) is the frequency of the radio waves used for mobile phones, and it is 100,000 times higher
https://www.rd.ntt/e/research/JN202202_17200.html
Annual_report_2024_E.pdf
appear in microstructures with mechanical freedom Phonon Manipulation Controlling ultrasonic propagation
https://www.rd.ntt/brl/brl/result/activities/file/annual_report/Annual_report_2024_E.pdf
NTTBrl_honbun_E_250225.indd
appear in microstructures with mechanical freedom Phonon Manipulation Controlling ultrasonic propagation
https://www.rd.ntt/brl/result/activities/file/annual_report/NTTBrl_E_250321_print.pdf