Results 31 to 40 of about 871,918 (286)

Fast Adaptive S-ALOHA Scheme for Event-driven Machine-to-Machine Communications

open access: yes, 2012
Machine-to-Machine (M2M) communication is now playing a market-changing role in a wide range of business world. However, in event-driven M2M communications, a large number of devices activate within a short period of time, which in turn causes high radio
La, Richard J.   +4 more
core   +1 more source

Who is investing in machine-to-machine communications? [PDF]

open access: yes, 2013
Machine-to-Machine (M2M) communications refers to the automate exchange of information between devices for control and monitoring applications. This type of communication is not new since automated systems have been present for more than three decades ...
Bratu, Vlad-loan   +2 more
core  

Waveform Optimization for Large-Scale Multi-Antenna Multi-Sine Wireless Power Transfer

open access: yes, 2016
Wireless power transfer (WPT) is expected to be a technology reshaping the landscape of low-power applications such as the Internet of Things, machine-to-machine communications and radio frequency identification networks.
Clerckx, Bruno, Huang, Yang
core   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

open access: yesAdvanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

The 6G Ecosystem as Support for IoE and Private Networks: Vision, Requirements, and Challenges

open access: yesFuture Internet, 2023
The emergence of the sixth generation of cellular systems (6G) signals a transformative era and ecosystem for mobile communications, driven by demands from technologies like the internet of everything (IoE), V2X communications, and factory automation. To
Carlos Serôdio   +5 more
doaj   +1 more source

Energy Versus Throughput Optimisation for Machine-to-Machine Communication [PDF]

open access: yesSensors, 2020
We investigate the trade-off between energy usage and (packet) throughput in wireless mesh networks performing machine-to-machine communication. For this we provide a novel mixed-integer programming formulation to maximise the throughput while maintaining minimal energy usage, together with an effective price-and-branch solution algorithm based on ...
Emma Fitzgerald   +2 more
openaire   +3 more sources

A hybrid approach for rural broadband access networks [PDF]

open access: yes, 2012
Recent regulatory developments by the US’s Federal Communications Commission and the UK’s Office of Communications (Ofcom) have opened up new opportunities for wireless systems to utilize unoccupied TV ‘White Space’ (TVWS) channels now available after ...
Darbari, Faisal   +4 more
core  

Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control

open access: yesAdvanced Functional Materials, EarlyView.
A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong   +7 more
wiley   +1 more source

3D‐Printed Hygroscopic Polymer Networks for High‐Humidity Triboelectric Nanogenerators to Wirelessly Power Implantable Electronic Devices‐ A Conceptual Pathway

open access: yesAdvanced Functional Materials, EarlyView.
This work develops 3D‐printable tribopolymer networks that can enhance triboelectric performance under high humidity environments. Polar hydrophilic functional groups and incorporation of zwitterionic monomers promote bound‐water–dominated interfacial polarization thereby increasing electrical outputs.
Linguangze Zhuo   +8 more
wiley   +1 more source

Emotion Communication System

open access: yesIEEE Access, 2017
In today's increasingly rich material life, people are shifting their focus from the physical world to the spiritual world. In order to identify and care for people's emotions, human-machine interaction systems have been created.
Min Chen, Ping Zhou, Giancarlo Fortino
doaj   +1 more source

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