Results 11 to 20 of about 120,328 (309)

Device-to-device communications in wireless sensor networks [PDF]

International Journal of Distributed Sensor Networks, 2016
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Yujin Lim, Gianluigi Ferrari 0001, Hideyuki Takahashi, Marius Monton   +3 more
openaire   +4 more sources

Interactive communication with clustering collaboration for wireless powered communication networks

International Journal of Distributed Sensor Networks, 2022
In this article, we propose a novel wireless powered communication network, which is composed of two multiple antennas hybrid access points and a series of distributed wireless devices.
Lina Yuan, Huajun Chen, Jing Gong
doaj   +1 more source

Experimental evaluation of a wireless community mesh network [PDF]

, 2013
Nowadays there are inexpensive WiFi devices that have fostered the deployment of wireless communities. Well known routing protocols used in the Internet do not fit well to time varying characteristic of wireless networks.
Axel Neumann, Cerdà-Alabern, Llorenç, Neumann, Axel, Cerdà Alabern, Llorenç, Escrich, Pau, Llorenç Cerdà-Alabern, Pau Escrich   +6 more
core   +1 more source

Low-Complexity Beamforming Design for a Cooperative Reconfigurable Intelligent Surface-Aided Cell-Free Network

Sensors, 2023
Cell-free (CF) networks are proposed to suppress the interference among collocated cells by deploying several BSs without cell boundaries. Nevertheless, as installing several base stations (BSs) may require high power consumption, cooperative CF networks
Muhammad Zain Siddiqi, Aisha Munir, Syed Agha Hassnain Mohsan, Shashi Shah, Sushank Chaudhary, Paramin Sangwongngam, Lunchakorn Wuttisittikulkij   +6 more
doaj   +1 more source

Design and testing of piezoelectric energy harvesting devices for generation of higher electric power for wireless sensor networks [PDF]

, 2009
This paper reports our design and testing results on the electric output performance of a vibration-based piezoelectric energy harvesting device (PEHD). The PEHD is a cantilever with a sandwich structure and seismic mass attached to the tip.
Zhu, Meiling, Emma Worthington, Meiling Zhu, Worthington, Emma   +3 more
core   +1 more source

Impact of Cellphone Radiation on Human Male Fertility [PDF]

Kirkuk Journal of Medical Sciences
Background: Concerns regarding the possible impact of mobile phones on health have grown recently as the number of individuals using mobile phone devices has increased.
Salih Haji, Ronak Ali
doaj   +1 more source

Experimental Evaluation of Wireless Mesh Networks: A Case Study and Comparison [PDF]

, 2013
Price of WiFi devices has decreased dramatically in recent years, while new standards, as 802.11n, have multiplied its performance. This has fostered the deployment of Wireless Mesh networks (WMN), putting into practice concepts evolved from more than a ...
Cerdà-Alabern, Llorenç, Neumann, Axel, Escrich, Pau   +2 more
core   +1 more source

ZigBee Transmitter for IoT Wireless Devices [PDF]

SSRN Electronic Journal, 2017
The rapid development in wireless networking has been witnessed in past several years, which aimed on high speed and long range applications. There are different protocol standards used for the short range wireless communication namely the Bluetooth, ZigBee, Wimax and Wi-Fi.
A.Mounica, G.V.Subbareddy
openaire   +3 more sources

All-Dielectric Phase-Gradient Metasurface Performing High-Efficiency Anomalous Transmission in the Near-Infrared Region

Nanoscale Research Letters, 2021
We propose and numerically demonstrate a phase-gradient metasurface with high anomalous transmission efficiency and a large anomalous refraction angle that consists of discontinuous regular hexagonal nanorods supported by a silica substrate.
Tiesheng Wu, Zhihui Liu, Yiping Wang, Huixian Zhang, Zuning Yang, Weiping Cao, Dan Yang   +6 more
doaj   +1 more source

Assessment of potential capabilities of Dreem: An ambulatory device for EEG phase-locked acoustic stimulation during sleep

Социально-экологические технологии, 2019
Sleep disorders are one of the significant problems in the modern society. Current research is on the lookout for the nonpharmacological ways to improve sleep quality and slow wave brain activity that plays a crucial role in homeostasis and cognitive ...
A.N. Puchkova, O.N. Tkachenko, I.P. Trapeznikov, I.A. Piletskaya, E.V. Tiunova, M.M. Sazonova, A.O. Taranov, S.S. Gruzdeva, V.B. Dorokhov   +8 more
doaj   +1 more source