Results 41 to 50 of about 4,358,974 (238)

Joint multicast routing and channel assignment in multiradio multichannel wireless mesh networks using tabu search [PDF]

open access: yes, 2009
Copyright @ 2009 IEEE Computer SocietyThis paper proposes a tabu search (TS) based optimization approach to search a minimum-interference multicast tree which satisfies the end-to-end delay constraint and optimizes the usage of the scarce radio network ...
Yang, S   +5 more
core   +1 more source

Channel width adaptation algorithm in multi-channel vehicular networks

open access: yesTongxin xuebao, 2010
Aiming at the low utilization of spectrum resource in vehicular networks,an algorithm base on semidefinite programming was presented,which could be utilized to channel width adaptation of multi-channel vehicular networks.Firstly,the algorithm need to ...
PENG Xin, LI Ren-fa, LIU Liang-jiao
doaj   +2 more sources

Dynamic Channel Allocation Techniques Using Adaptive Modulation and Adaptive Antennas

open access: yes, 2001
This contribution studies the impact of adaptive quadrature amplitude modulation (AQAM) on network performance when applied to a cellular network, using adaptive antennas in conjunction with both fixed channel allocation (FCA) and locally distributed ...
Blogh, J.S., Cherriman, P.J., Hanzo, L.
core   +1 more source

Distributed and Jamming-Resistant Channel Assignment and Routing for Multi-Hop Wireless Networks

open access: yesIEEE 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

ICBCA – Improved Cluster Based Channel Allocation in Cognitive Radio Sensor Networks

open access: yesJournal 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

Hybrid Beamforming and Resource Allocation Designs for mmWave Multi-User Massive MIMO-OFDM Systems on Uplink

open access: yesIEEE Access, 2023
In this paper, we investigate hybrid beamforming and resource allocation design problems for uplink millimeter wave (mmWave) multi-user (MU) massive multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems.
Hsin-Hsiang Tseng   +2 more
doaj   +1 more source

Accurate and noninvasive prostate cancer detection using plasma‐derived extracellular vesicle RNA

open access: yesFEBS Open Bio, EarlyView.
Plasma extracellular vesicles were captured with WGA‐conjugated magnetic beads and profiled for RNA biomarkers. A three‐RNA panel (NM_024955, NR_047469, and NR_002564) distinguished prostate cancer from healthy controls and benign prostatic hyperplasia, supporting a simple, noninvasive approach to improve prostate cancer detection.
Hanping Wei, Haoran Wu, Wei Feng
wiley   +1 more source

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

Choroid Plexus Enlargement and USPIO‐Based Inflammatory Feature in Cerebral Small Vessel Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The choroid plexus (CP) is a key component of the blood–cerebrospinal fluid barrier (BCSFB), but its mechanism of action in cerebral small vessel disease (CSVD) remains unclear. This study investigated CP volume (CPV) alterations and their association with conventional imaging markers in CSVD and explored the underlying role of ...
Yongqiang Qu   +11 more
wiley   +1 more source

QoSRP: A Cross-Layer QoS Channel-Aware Routing Protocol for the Internet of Underwater Acoustic Sensor Networks

open access: yesSensors, 2019
Quality of service (QoS)-aware data gathering in static-channel based underwater wireless sensor networks (UWSNs) is severely limited due to location and time-dependent acoustic channel communication characteristics.
Muhammad Faheem   +7 more
doaj   +1 more source

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