Results 31 to 40 of about 3,508 (187)

Research efficiency use of orthogonal double polarization MIMO antennas in drone communication

Системи обробки інформації, 2021
The article considers possible variants of application of various MIMO schemes for the communication with the drone or unmanned aerial vehicle. The model of multipath propagation of radio waves taking into account polarization parameters of antennas is ...
О.О. Мартинчук, В.І. Василишин, У Лісян, О.О. Мартинчук   +3 more
doaj   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Revolutionizing Healthcare With Paper‐Based Nucleic Acid Testing

Exploration, EarlyView.
This work summarizes strategies to enhance paper‐based devices for nucleic acid testing. Key approaches include optimizing paper platforms, improving nucleic acid amplification, and refining labeling/signaling methods. These advancements aim to boost sensitivity, speed, and usability, making paper‐based diagnostics more effective for point‐of‐care ...
Hong Zhang, Yi Yang, Heng Li, Xiaolin Hu, Hui Xiao, Dou Wang, Sergio Benardini, Wei Gu, Yang Luo   +8 more
wiley   +1 more source

Multipath Based Adaptive Concurrent Transfer for Real-Time Video Streaming Over 5G Multi-RAT Systems

IEEE Access, 2019
5G systems use multiple radio access technology (multi-RAT) to provide broadband, low latency, and high reliability services. Multi-RAT is effective when multipath transmission is used over multichannels.
Sooeun Song, Jaewook Jung, Minsu Choi, Changsung Lee, Jungkyu Sun, Jong-Moon Chung   +5 more
doaj   +1 more source

Amplitude modulation of radiation by coupled resonators

Доклады Белорусского государственного университета информатики и радиоэлектроники, 2020
In this paper, we describe a method that allows one to realize highly efficient amplitude modulation of radiation at the output of electro-optical laser switches with two coupled resonators, in which electro-optical elements are located both in two split
A. I. Kanojka
doaj   +1 more source

Conformal and Multi‐Domain Radio Frequency Energy Harvesting System Based on Graphene for Internet of Things Applications

Interdisciplinary Materials, EarlyView.
This study details a multi‐domain graphene assembled film (GAF) based radio frequency (RF) energy harvesting system (GEHS) for Internet of Things (IoT) applications. The GEHS integrates a flexible dual‐band, dual‐polarization, dual‐beam antenna array based on GAF materials with a high‐efficiency rectifier.
Yitong Xin, Rongguo Song, Haoran Zu, Wei Qian, Bo Liu, Wenjun Wang, Yunfa Si, Zhe Wang, Ruixue Zhang, Jiannan Guo, Jingwei Zhang, Boyang Mao, Daping He   +12 more
wiley   +1 more source

Evaluation and assimilation of Arctic Weather Satellite data in the AROME‐Arctic forecast system

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The Arctic Weather Satellite (AWS), launched in August 2024, is a prototype for the future EPS–Sterna constellation of small satellites carrying an innovative microwave sounder. We present the first assessment of AWS in the regional AROME‐Arctic numerical weather prediction system, covering post‐launch calibration results and the impact of AWS ...
Stéphanie Guedj, Per Dahlgren, Máté Mile   +2 more
wiley   +1 more source

Multipath Detection Using Boolean Satisfiability Techniques

Journal of Computer Networks and Communications, 2011
A new technique for multipath detection in wideband mobile radio systems is presented. The proposed scheme is based on an intelligent search algorithm using Boolean Satisfiability (SAT) techniques to search through the uncertainty region of the multipath
Fadi A. Aloul, Mohamed El-Tarhuni
doaj   +1 more source

Automated Lawn Maintenance: An Agronomic and Operational Review of Turf Health, Biodiversity, and Field Performance

Journal of Field Robotics, EarlyView.
ABSTRACT Grass mowing is one of the most resource‐consuming activities in green maintenance, whether in private areas such as home gardens or in public spaces like urban parks. In recent years, concerns related to climate change, human health, and sustainability have become increasingly prominent in green maintenance, leading manufacturers and industry
Andrea Palladini, Lorenzo Guerrini, Marco Fontanelli, Lucia Bortolini   +3 more
wiley   +1 more source

Evaluation of 5G Modulation Candidates WCP-COQAM, GFDM-OQAM, and FBMC-OQAM in Low-Band Highly Dispersive Wireless Channels

Journal of Computer Networks and Communications, 2017
We analyse some of the candidates for modulations for 5G: FBMC-OQAM, GFDM-OQAM, and WCP-COQAM. Unlike most of the related bibliographies, which are oriented to mobile communications, our research is focused on 5G in cognitive radio based industrial ...
Aitor Lizeaga, Pedro M. Rodríguez, Iñaki Val, Mikel Mendicute   +3 more
doaj   +1 more source