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Passively Controllable Smart Antennas [PDF]

open access: yes2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010
We recently introduced passively controllable smart (PCS) antenna systems for efficient wireless transmission, with direct applications in wireless sensor networks.
Babakhani, Aydin   +3 more
core   +4 more sources

Secure Communication for Uplink Cellular Networks Assisted with Full-Duplex Device-to-Device User

open access: yesFuture Internet, 2020
In this paper, the secure communication based on the full-duplex (FD) device-to-device (D2D) in cellular networks is proposed. For the proposed scheme, the novel model is established, in which a D2D user is played as a relay operating in FD mode to ...
Xin Song, Lin Xia, Siyang Xu, Yue Wang
doaj   +1 more source

A Novel Resource Allocation Scheme in NOMA-Based Cellular Network with D2D Communications

open access: yesFuture Internet, 2020
Non-orthogonal multiple access (NOMA) has become a promising technology for 5G. With the support of effective resource allocation algorithms, it can improve the spectrum resource utilization and system throughput.
Jingpu Wang, Xin Song, Yatao Ma
doaj   +1 more source

Identification of Q value and angular frequency of smart gear antenna using the resonant return loss of the receiving antenna

open access: yesSN Applied Sciences, 2022
A wireless smart gear system has been being developed as a gear health monitoring system. This system works based on the magnetic coupling between its two major elements consisting of a monitoring antenna and a smart gear.
Thanh-Tung Mac   +6 more
doaj   +1 more source

UTHM water quality classification based on sub index [PDF]

open access: yes, 2020
River or stream at their source is unpolluted, but as water flow downstream, the river or lake is receiving point and non-point pollutant source. Ammoniacal nitrogen (NH3- N) and suspended solids (SS) strongly influences the dynamics of the dissolved ...
Johari, A. H.   +2 more
core   +1 more source

Energy Efficient Power Allocation for Downlink NOMA Heterogeneous Networks With Imperfect CSI

open access: yesIEEE 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

An Invariant Dual-beam Snowflake Antenna for Future 5G Communications [PDF]

open access: yes, 2018
A broadband snowflake antenna for future 5G and millimeter-wave communications is presented. The proposed antenna has a size of 8 × 5 mm 2 . The antenna consists of a central hexagon surrounded by a series of symmetrically placed smaller hexagons around ...
Abbasi, Qammer H.   +3 more
core   +1 more source

Joint Uplink and Downlink Resource Allocation for D2D Communications System

open access: yesFuture 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

Printing of wirelessly rechargeable solid-state supercapacitors for soft, smart contact lenses with continuous operations [PDF]

open access: yes, 2019
Recent advances in smart contact lenses are essential to the realization of medical applications and vision imaging for augmented reality through wireless communication systems.
Ahn, David B.   +6 more
core   +2 more sources

Time and Power Allocation for Energy Efficiency Maximization in Wireless-Powered Full-Duplex Relay Systems

open access: yesFuture 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

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