Results 31 to 40 of about 1,721,197 (200)
Over-the-Air Phase Calibration Methods for 5G mmW Antenna Array Transceivers
IEEE AccessCalibration is essential to optimize the performance of any radio transceiver during its development and manufacturing processes. This paper proposes over-the-air (OTA) calibration methods based on measuring and calibrating the phases of phased array ...
Markku Jokinen +4 more
doaj +1 more source
Performance analysis of ultra-reliable short message decode and forward relaying protocols
EURASIP Journal on Wireless Communications and Networking, 2018 Machine-type communication (MTC) is a rapidly growing technology which covers a broad range of automated applications and propels the world into a fully connected society.
Parisa Nouri +2 more
doaj +1 more source
Optical wireless for intravehicle communications : a channel viability analysis [PDF]
, 2012 This paper provides an initial analysis into the viability of implementing an optical wireless system for intravehicle communications. Based on the use of a simple linearly scalable infrared light-emitting-diode transmitter, the results for received ...
Mark S. Leeson +5 more
core +1 more source
Latency-Aware Highly-Reliable mmWave Systems via Multi-Point Connectivity
IEEE Access, 2022 The sensitivity of the millimeter-wave (mmWave) radio channel to blockages is a fundamental challenge in achieving low-latency and highly-reliable connectivity.
Dileep Kumar +2 more
doaj +1 more source
Biodegradable and Biocompatible Functional Polymers for Biomedical Applications
Advanced Functional Materials, EarlyView.Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han +5 more
wiley +1 more source
Advanced Materials, EarlyView.Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son +20 more
wiley +1 more source
Wireless Traffic Usage Forecasting Using Real Enterprise Network Data: Analysis and Methods
IEEE Open Journal of the Communications Society, 2020 Wireless traffic usage forecasting methods can help to facilitate proactive resource allocation solutions in cloud managed wireless networks. In this paper, we present temporal and spatial analysis of network traffic using real traffic data of an ...
Su P. Sone +2 more
doaj +1 more source
Fitting the Distribution of Linear Combinations of t− Variables with more than 2 Degrees of Freedom
Journal of Probability and Statistics, 2023 The linear combination of Student’s t random variables (RVs) appears in many statistical applications. Unfortunately, the Student’s t distribution is not closed under convolution, thus, deriving an exact and general distribution for the linear ...
Onel L. Alcaraz López +2 more
doaj +1 more source
n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz
Advanced Materials, EarlyView.Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis +19 more
wiley +1 more source
Wireless Communications for the Hospital of the Future : Requirements, Challenges and Solutions [PDF]
, 2019 In this conceptual paper, we discuss the concept of hospital of the future (HoF) and the requirements for its wireless connectivity. The HoF will be mostly wireless, connecting patients, healthcare professionals, sensors, computers and medical devices ...
Kumpuniemi, Timo +3 more
core +1 more source