Results 41 to 50 of about 44,065 (274)

Exploiting cognitive wireless nodes for priority‐based data communication in terrestrial sensor networks

open access: yesETRI Journal, 2019
A priority‐based data communication approach, developed by employing cognitive radio capacity for sensor nodes in a wireless terrestrial sensor network (TSN), has been proposed.
Muhammed Enes Bayrakdar
doaj   +1 more source

Integrative Approaches for DNA Sequence‐Controlled Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
DNA is emerging as a programmable building block for functional materials with applications in biomimicry, biochemical, and mechanical information processing. The integration of simulations, experiments, and machine learning is explored as a means to bridge DNA sequences with macroscopic material properties, highlighting current advances and providing ...
Aaron Gadzekpo   +4 more
wiley   +1 more source

Convergence Research Directions in Cognitive Sensor Networks for Elderly Housing Design

open access: yesInternational Journal of Distributed Sensor Networks, 2015
As part of resolving the issue related to super-aging society, various information systems for the elderly care have been developed utilizing cognitive sensor networks. However, many sensor network-based systems cognizing radios, resources, environments,
Shinil Suh, Byung-Seo Kim, Jae Hee Chung
doaj   +1 more source

Weighted-Directed-Hypergraph-Based Spectrum Access for Energy Harvesting Cognitive Radio Sensor Network

open access: yesIEEE Access, 2020
In this paper, we investigate the spectrum access for energy harvesting cognitive radio sensor network (EH-CRSN), where sensor nodes (SNs) connected to different sinks share several channels.
Jing Ren   +5 more
doaj   +1 more source

Targeting the ARRDC3–DRP1 Axis via hUMSC‐Derived Exosomal CRYAB for Neuroprotection in Cerebral Ischemia/Reperfusion Injury

open access: yesAdvanced Healthcare Materials, EarlyView.
Intranasally administered hUMSC‐derived exosomes modulate the CRYAB–ARRDC3–Drp1 axis, alleviating mitochondrial dysfunction and ferroptosis, enhancing neuronal survival, reducing oxidative stress, and promoting functional recovery in ischemia‐reperfusion injury, offering a promising therapeutic strategy for ischemic stroke.
Rong ji   +7 more
wiley   +1 more source

Markov Model-Based Energy Efficiency Spectrum Sensing in Cognitive Radio Sensor Networks

open access: yesJournal of Computer Networks and Communications, 2016
Cognitive Radio Sensor Network (CRSN), incorporating cognitive radio capability in wireless sensor networks, is a new paradigm of the next-generation sensor network. Sensor nodes are usually battery powered and hence have strict energy constraints.
Yan Jiao, Inwhee Joe
doaj   +1 more source

Energy-Efficient Cognitive Radio Sensor Networks: Parametric and Convex Transformations

open access: yesSensors, 2013
Designing energy-efficient cognitive radio sensor networks is important to intelligently use battery energy and to maximize the sensor network life. In this paper, the problem of determining the power allocation that maximizes the energy-efficiency of ...
Alagan Anpalagan   +4 more
doaj   +1 more source

Dynamic Geospatial Spectrum Modelling: Taxonomy, Options and Consequences [PDF]

open access: yes, 2010
Much of the research in Dynamic Spectrum Access (DSA) has focused on opportunistic access in the temporal domain. While this has been quite useful in establishing the technical feasibility of DSA systems, it has missed large sections of the overall DSA ...
Al-Tamaimi, Mohammed   +2 more
core   +5 more sources

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

open access: yesAdvanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong   +12 more
wiley   +1 more source

Energy-Efficient Channel Handoff for Sensor Network-Assisted Cognitive Radio Network

open access: yesSensors, 2015
The visiting and less-privileged status of the secondary users (SUs) in a cognitive radio network obligates them to release the occupied channel instantly when it is reclaimed by the primary user.
Muhammad Usman   +3 more
doaj   +1 more source

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