Results 21 to 30 of about 66,653 (266)
Crystals, 2023 A frequency magnetically tunable perfect absorber based on graphene in the terahertz (THz) region is proposed. The performance is analysed using the 4 × 4 transfer matrix method, demonstrating that the perfect absorption frequency of the proposed ...
Zhenyan Wei, Yannan Jiang, Jiao Wang
doaj +1 more source
Mediumband Wireless Communication
2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall), 2022 5 pages, 3 figures, Proceedings of IEEE Vehicular Technology conference (VTC-Fall) 2022, London ...
openaire +2 more sources
Biomonitoring with Wireless Communications [PDF]
Annual Review of Biomedical Engineering, 2003 ▪ Abstract Wireless biomonitoring, first used in human beings for fetal heart-rate monitoring more than 30 years ago, has now become a technology for remote sensing of patients' activity, blood pulse pressure, oxygen saturation, internal pressures, orthopedic device loading, and gastrointestinal endoscopy.
openaire +3 more sources
Enhanced LoRaWAN Adaptive Data Rate for Mobile Internet of Things Devices
Sensors, 2020 A long-range wide area network (LoRaWAN) is one of the leading communication technologies for Internet of Things (IoT) applications. In order to fulfill the IoT-enabled application requirements, LoRaWAN employs an adaptive data rate (ADR) mechanism at ...
Arshad Farhad +3 more
doaj +1 more source
Wireless and Radio Communications [PDF]
IEEE Communications Standards Magazine, 2017 The articles in this special section examine new and emerging wireless and radio communication technologies.
Todor Cooklev +2 more
openaire +3 more sources
A Swastika-Shaped Structure Monopole Filtenna for mm-Wave Applications [PDF]
E3S Web of ConferencesA Swastika monopole antenna, which is 20 x 20 x 0.8 mm3 and covers the frequency range of 23 GHz to 32 GHz & 37 GHz to 80 GHz, a multi-band filtenna for various applications.
Kumari Shikha, Suraj Priyadarshi
doaj +1 more source
Beamspace Spatial Smoothing MUSIC DOA Estimation Method Using Dynamic Metasurface Antenna
EntropyThe Direction-of-Arrival (DOA) estimation method using traditional array antennas cannot dynamically adjust the observation angle range based on the Region of Interest (ROI), which leads to limited estimation accuracy and high computational complexity ...
Lilong Hou +5 more
doaj +1 more source
A Comprehensive Survey of RAN Architectures Toward 5G Mobile Communication System
IEEE Access, 2019 The fifth generation (5G) of mobile communication system aims to deliver a ubiquitous mobile service with enhanced quality of service (QoS). It is also expected to enable new use-cases for various vertical industrial applications—such as ...
Mohammad Asif Habibi +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This study reports a microfluidic device with a functionalized surface utilizing a polyoxazoline coating and covalently immobilized gold nanoparticles and anti‐phosphatidylserine antibody. The device efficiently eliminates pre‐apoptotic and apoptotic spermatozoa and yields sperm with substantially improved quality and low DNA damage, offering a simple ...
Soraya Rasi Ghaemi +5 more
wiley +1 more source
On the Downlink Throughput Capacity of Hybrid Wireless Networks With MIMO
IEEE Access, 2017 In this paper, the downlink throughput capacity of hybrid wireless networks is mainly studied. Multiple-input multiple-output (MIMO) technology is assumed to be equipped on the base station and nodes to improve communication performance and increase the ...
Baoju Zhang +3 more
doaj +1 more source