Results 61 to 70 of about 193,235 (293)
Optimal channel allocation with dynamic power control in cellular networks
, 2011 Techniques for channel allocation in cellular networks have been an area of intense research interest for many years. An efficient channel allocation scheme can significantly reduce call-blocking and calldropping probabilities. Another important issue is
Bari, Ataul, Jaekel, Arunita, Wu, Xin
core +1 more source
A survey on OFDM-based elastic core optical networking [PDF]
, 2013 Orthogonal frequency-division multiplexing (OFDM) is a modulation technology that has been widely adopted in many new and emerging broadband wireless and wireline communication systems.
De Leenheer, Marc +3 more
core +2 more sources
FEBS Open Bio, EarlyView.Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman +4 more
wiley +1 more source
ICBCA – Improved Cluster Based Channel Allocation in Cognitive Radio Sensor Networks
Journal of Telecommunications and Information Technology, 2020 Wireless sensor networks (WSNs) operate in an overcrowded electromagnetic environment, as the spectrum is shared by various wireless communication technologies. This gives rise to various challenges related to optimized and efficient spectrum utilization.
Veeranna Gatate, Jayashree Agarkhed
doaj +1 more source
CELLULAR LEARNING AUTOMATA BASED DYNAMIC CHANNEL ASSIGNMENT ALGORITHMS [PDF]
International Journal of Computational Intelligence and Applications, 2009 A solution to channel assignment problem in cellular networks is self-organizing channel assignment algorithm with distributed control. In this paper, we propose three cellular learning automata based dynamic channel assignment algorithms. In the first two algorithms, no information about the status of channels in the whole network will be used by ...
Hamid Beigy, Mohammad Reza Meybodi
openaire +1 more source
Feedback Allocation For OFDMA Systems With Slow Frequency-domain Scheduling [PDF]
, 2012 We study the problem of allocating limited feedback resources across multiple users in an orthogonal-frequency-division-multiple-access downlink system with slow frequency-domain scheduling.
Constantine Caramanis +8 more
core +4 more sources
Acute caffeine treatment protects the developing retina from ischemia‐induced cell death
FEBS Open Bio, EarlyView.Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento +6 more
wiley +1 more source
Distributed and Jamming-Resistant Channel Assignment and Routing for Multi-Hop Wireless Networks
IEEE Access, 2018 We are becoming more reliant on multi-hop wireless networks (MWNs) for public safety, tactical/military, and last mile Internet communications. The architecture of an MWN can be flat, as in ad-hoc networks or hierarchical, as in mesh or sensor networks ...
Yalew Zelalem Jembre, Young-June Choi
doaj +1 more source
Dynamic bandwidth allocation with optimal wavelength switching in TWDM-PONs [PDF]
, 2013 Time and wavelength division multiplexed passive optical networks (TWDM-PONs) have been widely considered as one of the next evolutionary steps of optical access networks.
Colle, Didier +4 more
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Emerging evidence suggests that low‐frequency neural oscillations are dynamically regulated by consciousness levels, with the recovery of low cortical activity potentially serving as a neurophysiological substrate for conscious emergence. Targeted enhancement of these low‐frequency rhythms in patients with disorders of consciousness
Chuan Xu +10 more
wiley +1 more source