Results 21 to 30 of about 916,407 (328)
Remote Sensing for Plant Water Content Monitoring: A Review
Remote Sensing, 2021 This paper reviews the different remote sensing techniques found in the literature to monitor plant water status, allowing farmers to control the irrigation management and to avoid unnecessary periods of water shortage and a needless waste of valuable ...
Carlos Quemada +6 more
doaj +1 more source
Double U-slots patch antenna for tri-band wireless systems [PDF]
, 2010 File shown is the pre-print version of the published paper, with the title "Connected u-slots pathch antenna for WiMAX applications"ABSTRACT: A compact microstrip patch antenna with two U-slots shape is presented.
AbuTarboush, HF +11 more
core +1 more source
Energy Efficient Power Allocation for Downlink NOMA Heterogeneous Networks With Imperfect CSI
IEEE Access, 2019 Non-orthogonal multiple access (NOMA) is a promising emerging technology that can significantly improve the utilization of spectrum and system capacity in heterogeneous wireless networks.
Xin Song +4 more
doaj +1 more source
Hybrid Digital and Analog Beamforming Design for Large-Scale Antenna Arrays [PDF]
IEEE Journal on Selected Topics in Signal Processing, 2016 The potential of using of millimeter wave (mmWave) frequency for future wireless cellular communication systems has motivated the study of large-scale antenna arrays for achieving highly directional beamforming.
Foad Sohrabi, Wei Yu
semanticscholar +1 more source
IEEE Access, 2022 Radio frequency energy harvesting (RFEH) and wireless power transmission (WPT) are two emerging alternative energy technologies that have the potential to offer wireless energy delivery in the future.
M. A. Ullah +5 more
semanticscholar +1 more source
Reconfigurable tri-band H-shaped antenna with frequency selectivity feature for compact wireless communication systems [PDF]
, 2011 This is the post-print version of the Article. The published version can be accessed from the link below - Copyright @ 2011 IETThis study presents an H-shaped reconfigurable antenna for wireless applications.
AbuTarboush, HF +14 more
core +1 more source
Future Internet, 2019 In this paper, we propose an optimal time and power allocation scheme in a wireless power supply full-duplex (FD) relay system, where we consider the number of relay antennas in the energy harvesting stage.
Xin Song +4 more
doaj +1 more source
Design of Multiband Balanced Folded Dipole Antenna Based on a Dual-Arm Structure for Mobile Handsets [PDF]
, 2008 YesIn this paper, a balanced antenna for mobile handset applications with enhanced bandwidth performance, that covers four bands (GSM1800, GSM1900, UMTS and 2.4-GHz WLAN), is investigated.
Abd-Alhameed, R.A. +7 more
core +5 more sources
Joint Uplink and Downlink Resource Allocation for D2D Communications System
Future Internet, 2019 In cellular networks, device-to-device communications can increase the spectrum efficiency, but some conventional schemes only consider uplink or downlink resource allocation.
Xin Song +4 more
doaj +1 more source
Prospective Multiple Antenna Technologies for Beyond 5G [PDF]
IEEE Journal on Selected Areas in Communications, 2019 Multiple antenna technologies have attracted much research interest for several decades and have gradually made their way into mainstream communication systems.
Jiayi Zhang +5 more
semanticscholar +1 more source