Results 71 to 80 of about 12,490 (287)
Energy-Efficiency Maximization for Cooperative Spectrum Sensing in Cognitive Sensor Networks [PDF]
, 2017 Spectrum sensing is the prerequisite of opportunistic spectrum access in cognitive sensor networks (CSNs) as its reliability determines the success of transmission. However, spectrum sensing is an energy-consuming operation that needs to be minimized for
Wu, Jinsong +4 more
core
Derivation and characterization of retinal pigment epithelium from urine‐derived iPSCs
FEBS Open Bio, EarlyView.Age‐related macular degeneration causes vision loss via RPE dysfunction and loss. Traditional iPSC therapies rely on invasive biopsies, limiting scalability. Here, we utilize urine‐derived stem cells as an accessible source to generate u‐iPSCs, successfully differentiated into pigmented RPE. This “Urine‐to‐Retina” platform provides a promising path for
Daniella Beiner +7 more
wiley +1 more source
Subband based Cooperative Spectrum Sensing [PDF]
, 2015 Wireless communication technology with traditional rigid spectrum allocations and low scalability is wasting lots of spectral resources. Spectral congestion is becoming critical with heavily increasing utilization of wireless communications technology ...
Lamichhane, Kishor
core
FEBS Open Bio, EarlyView.The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley +1 more source
Location-aware cooperative spectrum sensing within cognitive radio networks [PDF]
, 2015 Spectrum sensing is the key enabling technology for cognitive radio networks. The main objective of spectrum sensing is to provide more spectrum access opportunities to cognitive radio users without interfering with the operations of the licensed network.
Abdel-Maguid, Mohamed +7 more
core +1 more source
Effect of terahertz irradiation on DNA damage repair in living cells
FEBS Open Bio, EarlyView.We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno +3 more
wiley +1 more source
Research on a cooperative spectrum sensing algorithm based on energy-constraint
Tongxin xuebao, 2012 With the aim of the realization of green energy-efficient cognitive communications,the energy consumption was mainly analyzed in the process of cooperative sensing and transmission,and an energy-efficient centralized cooperative spectrum sensing scheme ...
Jian SU, Guo-qin NING, Feng QING
doaj +2 more sources
Secure Cooperative Spectrum Sensing and Allocation in Distributed Cognitive Radio Networks
International Journal of Distributed Sensor Networks, 2015 Cognitive radio networks (CRNs) are an emerging wireless communications technique for resolving the significant spectrum scarcity problem. Despite their promising characteristics, CRNs also introduce new security threats, especially the internal attacks ...
Hui Lin +4 more
doaj +1 more source
Multi-Modal Cooperative Spectrum Sensing Based on Dempster-Shafer Fusion in 5G-Based Cognitive Radio
IEEE Access, 2018 In 5G-based cognitive radio, the primary user signal is more active due to the broad frequency band. The traditional cooperative spectrum sensing only detects one characteristic of PU using one kind of detector, which may decrease the sensing performance
Xin Liu +4 more
doaj +1 more source
In-Newtork Cooperative Spectrum Sensing
, 2009 Publication in the conference proceedings of EUSIPCO, Glasgow, Scotland ...
Aysal, Tuncer Can +2 more
openaire +2 more sources