Results 41 to 50 of about 279 (134)

Delay-Tolerance-Based Mobile Data Offloading Using Deep Reinforcement Learning

Sensors, 2019
The demand for mobile data communication has been increasing owing to the diversification of its purposes and the increase in the number of mobile devices accessing mobile networks.
Daisuke Mochizuki, Yu Abiko, Takato Saito, Daizo Ikeda, Hiroshi Mineno   +4 more
doaj   +1 more source

Reconfigurable Intelligent Surfaces (RIS) and Their Role in Next‐Generation Wireless Networks: An Overview

Transactions on Emerging Telecommunications Technologies, Volume 36, Issue 6, June 2025.
This paper explicitly reviews the state‐of‐the‐art RIS‐assisted wireless networks, especially open challenges relating to the B5G and 6G networks. This work presents an intensive study of recent research on RIS to provide an in‐depth understanding of the underlying principles surrounding RIS operations, composition, and effect on EM waves.
Chukwuemeka Nwufo, Oluyomi Simpson, Yichuang Sun   +2 more
wiley   +1 more source

Transmit Antenna Selection and Power Allocation Optimization for Non‐Orthogonal Multiple Access Systems with Statistical Channel State Information

IET Communications, Volume 19, Issue 1, January/December 2025.
We study a downlink multiple input single output non‐orthogonal multiple access system considering statistical channel state information over Nakagami‐m fading channel. We propose a novel low‐complexity transmit antenna selection‐head strategy to enhance the sum throughput.
Zhuo Han, Wanming Hao, Shouyi Yang, Zhiqing Tang   +3 more
wiley   +1 more source

Detection of oral cancer and oral potentially malignant disorders using artificial intelligence‐based image analysis

Head &Neck, Volume 46, Issue 9, Page 2253-2260, September 2024.
Abstract Background We aimed to construct an artificial intelligence‐based model for detecting oral cancer and dysplastic leukoplakia using oral cavity images captured with a single‐lens reflex camera. Subjects and methods We used 1043 images of lesions from 424 patients with oral squamous cell carcinoma (OSCC), leukoplakia, and other oral mucosal ...
Atsumu Kouketsu, Chiaki Doi, Hiroaki Tanaka, Takashi Araki, Rina Nakayama, Tsuguyoshi Toyooka, Satoshi Hiyama, Masahiro Iikubo, Ken Osaka, Keiichi Sasaki, Hirokazu Nagai, Tsuyoshi Sugiura, Kensuke Yamauchi, Kanako Kuroda, Yuta Yanagisawa, Hitoshi Miyashita, Tomonari Kajita, Ryosuke Iwama, Tsuyoshi Kurobane, Tetsu Takahashi   +19 more
wiley   +1 more source

On the Metabolism of Exogenous Ketones in Humans

Frontiers in Physiology, 2017
Background and aims: Currently there is considerable interest in ketone metabolism owing to recently reported benefits of ketosis for human health. Traditionally, ketosis has been achieved by following a high-fat, low-carbohydrate “ketogenic” diet, but ...
Brianna J. Stubbs, Pete J. Cox, Rhys D. Evans, Peter Santer, Jack J. Miller, Jack J. Miller, Olivia K. Faull, Snapper Magor-Elliott, Satoshi Hiyama, Matthew Stirling, Kieran Clarke   +10 more
doaj   +1 more source

Enhanced Next Generation Millimeter-Wave Multicarrier System with Generalized Frequency Division Multiplexing

International Journal of Antennas and Propagation, 2016
Orthogonal Frequency Division Multiplexing (OFDM) is a popular multicarrier technique used to attain high spectral efficiencies. It also has other advantages such as multipath tolerance and ease of implementation.
Hidekazu Shimodaira, Joongheon Kim, Ali S. Sadri   +2 more
doaj   +1 more source

Sybil-Resistant Self-Sovereign Identity Utilizing Attested Execution Secure Processors and Zero-Knowledge Membership Proofs

IEEE Access
Increasing attention to digital identity and self-sovereign identity (SSI) is gaining momentum. SSI brings various benefits to natural persons, such as owning controls; conversely, digital identity systems in the real world require Sybil-resistance to ...
Koichi Moriyama, Akira Otsuka
doaj   +1 more source

A Rate-Adaptive MAC Protocol Based on TCP throughput for Ad Hoc Networks in Fading Channels [PDF]

Journal of Systemics, Cybernetics and Informatics, 2008
Wireless technology is becoming a leading option for future Internet access. Transmission Control Protocol (TCP) is one of the protocols designed on the basis of the transmission characteristics in wired networks.
Shoko Uchida, Katsuhiro Naito, Kazuo Mori, Hideo Kobayashi   +3 more
doaj  

Adaptive Interference Restriction Among Spatial Streams Based on Difference in Singular Values for PAPR Reduction in Uplink Eigenmode Massive MIMO Transmission

IEEE Access
In this paper, we propose two peak-to-average power ratio (PAPR) reduction methods that apply adaptive in-band interference restriction based on singular value differences between spatial channels in uplink eigenmode massive multiple-input multiple ...
Yuta Abekura, Takanori Hara, Satoshi Suyama, Satoshi Nagata, Kenichi Higuchi   +4 more
doaj   +1 more source

Analysis of the relationship between urban dynamics and prevalence of remote work based on population data generated from cellular networks. [PDF]

Sci Rep, 2023
Akatsuka H, Toyoda M.
europepmc   +1 more source