Results 191 to 200 of about 24,823,467 (236)

APTES‐Mediated Ti‐Squarate MOF/n‐GaN Nanowire Photoanodes for Efficient Photoelectrochemical Water Splitting

open access: yesAdvanced Functional Materials, EarlyView.
The APTES linker establishes a permanent interfacial dipole, reducing the work function of n‐GaN from 3.55 to 3.29 eV. This strengthens the built‐in electric field, significantly accelerating hole extraction to drive the oxygen evolution reaction (OER). Ultimately, this tailored charge‐separation architecture achieves a remarkable 4.78‐fold enhancement
Jeong‐Kyun Oh   +15 more
wiley   +1 more source

Programming Neuromorphic Plasticity Through Ionic and Electronic Coupling in Organic Electrochemical Transistors

open access: yesAdvanced Functional Materials, EarlyView.
Neuromorphic plasticity in OECTs is governed by the post‐stimulus evolution of coupled ionic and electronic states. Semiconductor chemistry and morphology, electrolyte composition and interfaces, and device architecture regulate ion injection, transport, confinement, and release, shifting responses from rapidly relaxing STP to metastable memory and ...
Inho Lee   +9 more
wiley   +1 more source

Low-Power Wide-Area Networks at the IETF

IEEE Communications Standards Magazine, 2017
A new breed of wireless technologies has emerged under the generic name of low-power, wide-area (LPWA), with a number of common characteristics that make these technologies uniquely suitable for Internet of Things (IoT) applications. These common characteristics include a power-optimized radio network, a simplified network topology, frame sizes in the ...
Pascal Thubert   +2 more
openaire   +3 more sources

Modelling and analysis of low-power wide-area networks [PDF]

open access: yes2017 IEEE International Conference on Communications (ICC), 2017
In this paper, we investigate the uplink transmission performance of low-power wide-area networks (LPWANs) with regards to coexisting radio modules using LoRa as an example. In doing so we adopt a new topology to model the network where the node locations of the network of focus (LoRa) follow a Poisson cluster process (PCP) while other coexisting ...
Zhijin Qin   +3 more
openaire   +2 more sources

Survey of the low power wide area network technologies

Journal of Network and Computer Applications, 2020
Abstract With the number of connected devices in Internet of Things (IoT) increasing, the requirements for connectivity (e.g., battery life, deployment cost and coverage) are evolving to ensure effective communication between these devices. The emerging low power wide area (LPWA) technologies pave a way to address the problem as they can provide ...
Fei Gu 0001   +4 more
openaire   +2 more sources

Low-power wide-area networks

Proceedings of the Workshop Program of the 19th International Conference on Distributed Computing and Networking, 2018
Low-Power Wide-Area Network (LPWAN) is an emerging network technology for Internet of Things (IoT) which offers long-range and wide-area communication at low-power. It thus overcomes the range limits and scalability challenges associated with traditional short range wireless sensor networks.
Dali Ismail   +2 more
openaire   +2 more sources

Collision Evaluation in Low Power Wide Area Networks

2019 IEEE SmartWorld, Ubiquitous Intelligence & Computing, Advanced & Trusted Computing, Scalable Computing & Communications, Cloud & Big Data Computing, Internet of People and Smart City Innovation (SmartWorld/SCALCOM/UIC/ATC/CBDCom/IOP/SCI), 2019
This paper presents a performance evaluation of intercell interference and packets collision in scalable Low Power Wide Area Networks (LPWANs). The collision problem is one of the most critical challenges in LPWANs because it can substantially affect network performance and reliability.
Riyadh A. Abbas   +3 more
openaire   +1 more source

High-Density Low Power Wide Area Networks

2018 10th International Conference on Electronics, Computers and Artificial Intelligence (ECAI), 2018
The potential of WSN related to the IoT concept is immense. According to a Cisco study the IoT will merge with other engineering areas such as artificial intelligence (AI), fog computing and blockchain technologies, creating new business opportunities.
Alexandru Lavric, Adrian-Ioan Petrariu
openaire   +2 more sources

Modeling of IEEE1451-Standardized Low Power Wide Area Networks

2021 IEEE 19th International Conference on Industrial Informatics (INDIN), 2021
Internet of Things (IoT) has become one of the most popular technologies in recent years, covering from citywide services to industrial applications, which enlarges the smart life for human beings. Through IoT, billions of IoT end devices can be interconnected to support various applications.
Yang Wei 0001   +3 more
openaire   +2 more sources

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