Results 51 to 60 of about 438,323 (269)

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

Advanced 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, Zengyu Zhang, Zhuohang Liu, Kaicheng Yang, Xueyu Mao, Min Chu, Yong Wang, Jing Zhao   +7 more
wiley   +1 more source

Cognitive radio and machine learning modalities for enhancing the smart transportation system: A systematic literature review

ICT Express
Smart transportation systems implemented through vehicular ad hoc networks (VANET) offer significant potential to improve safety. However, the network faces critical challenges related to security, as well as inadequate spectrum sensing and management ...
Mohd Yamani Idna Idris, Ismail Ahmedy, Tey Kok Soon, Muktar Yahuza, Abubakar Bello Tambuwal, Usman Ali   +5 more
doaj   +1 more source

Monopoly-Market-Based Cooperation in Cognitive Radio Networks

Journal of Communications Software and Systems, 2020
In a cognitive radio network (CRN), the primary users (PUs) do not operate their spectra, full time. Thus, they can sell them to the secondary users (SUs), for a second use, during the free time slots.
Said Lakhal, Zouhair Guennoun
doaj   +1 more source

Cognitive radio Over fibre: potential advantages for spectrum management [PDF]

, 2010
The paper explores some of the advantages that radio over fibre technologies can bring to wireless networks when combined with cognitive radio ...
Mitchell, J.E.
core  

Public safety and cognitive radio [PDF]

, 2009
This book gives comprehensive and balanced coverage of the principles of cognitive radio communications, cognitive networks, and details of their implementation, including the latest developments in the standards and spectrum policy. Case studies, end-of-
Heskamp, Marnix, Schiphorst, Roel, Slump, Kees   +2 more
core   +3 more sources

Full Spectrum Sharing in Cognitive Radio Networks Toward 5G: A Survey

IEEE Access, 2018
With the development of wireless communication technology, the need for bandwidth is increasing continuously, and the growing need makes wireless spectrum resources more and more scarce.
Feng Hu, Bing Chen, K. Zhu
semanticscholar   +1 more source

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

Advanced 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, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Cognitive Radio for Emergency Networks [PDF]

, 2006
In the scope of the Adaptive Ad-hoc Freeband (AAF) project, an emergency network built on top of Cognitive Radio is proposed to alleviate the spectrum shortage problem which is the major limitation for emergency networks.
Kokkeler, A.B.J., Smit, G.J.M., Zhang, Qiwei   +2 more
core   +2 more sources

Recent Progress on Flexible Multimodal Sensors: Decoupling Strategies, Fabrication and Applications

Advanced Materials, EarlyView.
In this review, we establish a tripartite decoupling framework for flexible multimodal sensors, which elucidates the underlying principles of signal crosstalk and their solutions through material design, structural engineering, and AI algorithms. We also demonstrate its potential applications across environmental monitoring, health monitoring, human ...
Tao Wu, Yu‐Tao Li, Luyu Zhao, Yi Zhang, Zhaojie Zhang, Jian Yuan, Yiwen Wu, Anqi Che, Yuanxiao Ma, Yang Chai, Yeliang Wang   +10 more
wiley   +1 more source

Secure mmWave Communications in Cognitive Radio Networks

, 2019
In this letter, the secrecy performance in cognitive radio networks (CRNs) over fluctuating two-ray (FTR) channels, which is used to model the millimetre wave channel, is investigated in terms of the secrecy outage probability (SOP).
Alouini, Mohamed-Slim, Pan, Gaofeng, Yang, Liang, Zhang, Jiayi, Zhao, Hui   +4 more
core   +1 more source