Results 21 to 30 of about 192,457 (251)
Energy-Efficient Heterogeneous Cellular Networks with Spectrum Underlay and Overlay Access [PDF]
, 2016 In this paper, we provide joint subcarrier assignment and power allocation schemes for quality-of-service (QoS)-constrained energy-efficiency (EE) optimization in the downlink of an orthogonal frequency division multiple access (OFDMA)-based two-tier ...
Alsusa, Emad +5 more
core +2 more sources
The influence of CDN sinking on metro transmission network
MATEC Web of Conferences, 2018 With the rise of VR/AR and 4K/8K video services, users have higher requirements for personal experience. Promotion of user experience is an important factor to attract end-users.
Hu Y., Peng P.
doaj +1 more source
Overview of time synchronization technology for underground coal mine IoTs perception layer
Gong-kuang zidonghua, 2021 Time synchronization is the basis and prerequisite for precise information perception in intelligent mines. Many characteristics of underground space in coal mines, such as narrow and long terrain and uneven surface of the roadway, can cause large ...
YUAN Liang1, CHEN Zhenping2
doaj +1 more source
, 2010 This study investigates the ability of a diverging/converging neural network to transmit and integrate a complex temporally organized activity embedded in afferent spike trains. The temporal information is originally generated by a deterministic nonlinear dynamical system whose parameters determine a chaotic attractor.
Asai, Yoshiyuki, Villa, Alessandro
openaire +2 more sources
, 2007 In this paper, a hierarchical cross-layer design approach is proposed to increase energy efficiency in ad hoc networks through joint adaptation of nodes' transmitting powers and route selection.
Comaniciu, Cristina, Poor, H. Vincent
core +3 more sources
, 2018 The research field of two dimensional (2D) materials strongly relies on optical microscopy characterization tools to identify atomically thin materials and to determine their number of layers. Moreover, optical microscopy-based techniques opened the door
Barcons, David +14 more
core +1 more source
UAV Swarm-Enabled Aerial CoMP: A Physical Layer Security Perspective [PDF]
, 2019 Unlike aerial base station enabled by a single unmanned aerial vehicle (UAV), aerial coordinated multiple points (CoMP) can be enabled by a UAV swarm. In this case, the management of multiple UAVs is important.
Chen, Yunfei +3 more
core +2 more sources
, 2014 Computation of electromagnetic fields due to point sources (Hertzian dipoles) in cylindrically stratified media is a classical problem for which analytical expressions of the associated tensor Green's function have been long known.
Donderici, B., Moon, H., Teixeira, F. L.
core +1 more source
A generalized asymptotic extraction solution for antennas in multilayered spherical media [PDF]
, 2010 An efficient model is developed to accelerate the convergence of the dyadic Green's function's (DGF) infinite summation when the source and observation points are placed in different layers of a dielectric sphere, thereby expediting computational ...
Khamas, S.K.
core +1 more source
Advanced Engineering Materials, EarlyView.This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo +3 more
wiley +1 more source