Results 31 to 40 of about 9,673 (291)

On-Body Calibration and Measurements Using a Personal, Distributed Exposimeter for Wireless Fidelity [PDF]

Health Physics, 2015
This paper describes the design, calibration, and measurements with a personal, distributed exposimeter (PDE) for the on-body detection of radio frequency (RF) electromagnetic fields due to Wireless Fidelity (WiFi) networks. Numerical simulations show that using a combination of two RF nodes placed on the front and back of the body reduces the 50 ...
Thielens, Arno, Agneessens, Sam, De Clercq, Hans, Lecoutere, Jeroen, Verloock, Leen, Tanghe, Emmeric, Aerts, Sam, Puers, Robert, Rogier, Hendrik, Martens, Luc, Joseph, Wout   +10 more
openaire   +2 more sources

Emergency TeleOrthoPaedics m-health system for wireless communication links

, 2009
For the first time, a complete wireless and mobile emergency TeleOrthoPaedics system with field trials and expert opinion is presented. The system enables doctors in a remote area to obtain a second opinion from doctors in the hospital using secured ...
Nilavalan, Rajagopal, Voskarides, S. Ch, Schizas, Akis N., Itagaki, T., Hadjinicolaou, M.G., Hadjinicolaou, M, Voskarides, S, Nilavalan, R., Voskarides, Sotos, Nilavalan, R, Itagaki, T, Schizas, A.N., Hadjinicolaou, Marios G., Schizas, A, Pattichis, C.S., Pattichis, Constantinos S.   +15 more
core   +1 more source

Design and Implementation of 2×4 Truncated Corner Patch Microstrip Array Antenna with U-Slot at 2.4 GHz Frequency for Wi-Fi Applications

Jurnal Jaringan Telekomunikasi, 2022
Antennas are an important component in wireless communication systems that continue to grow in the use of the 2.4 GHz frequency for 4G/LTE applications. Technology in the field of telecommunications has developed very rapidly using wireless communication,
Koesmarijanto Koesmarijanto, Ainun Azizah, Hendro Darmono   +2 more
doaj   +1 more source

Rancang Bangun Antenna Mikrostrip Peripheral Slits Linear Array Untuk Aplikasi Wi-Fi

Jurnal Rekayasa Elektrika, 2017
Wireless Fidelity (Wi-Fi) is the modern telecommunication technology nowadays being so widely used and developed at operating frequency of 2.4 GHz, that needs microstrip antenna as best suited supporting means for transmitting and receiving data signals ...
Syah Alam, I Gusti Nyoman Yogi Wibisana, Indra Surjati   +2 more
doaj   +1 more source

Toward Designing a Li-Fi-Based Hierarchical IoT Architecture

IEEE Access, 2018
Current wireless communication technologies, such as wireless-fidelity (Wi-Fi) and Bluetooth, use radio waves as the basic medium in transferring information.
Lamya I. Albraheem, Lamia H. Alhudaithy, Afnan A. Aljaser, Muneerah R. Aldhafian, Ghada M. Bahliwah   +4 more
doaj   +1 more source

Design of a WSN Platform for Long-Term Environmental Monitoring for IoT Applications [PDF]

, 2013
The Internet of Things (IoT) provides a virtual view, via the Internet Protocol, to a huge variety of real life objects, ranging from a car, to a teacup, to a building, to trees in a forest.
Lazarescu, Mihai Teodor
core   +1 more source

An Artificial Neural Network-Based Handover Scheme for Hybrid LiFi Networks

IEEE Access, 2022
Combining the ultra-high user throughput of the light fidelity (LiFi) and the ubiquitous coverage of wireless fidelity (WiFi), the hybrid LiFi and WiFi network (HLWNet) demonstrates unparalleled advantages in indoor wireless data transmission. Due to the
Guanghui Ma, Rajendran Parthiban, Nemai Karmakar   +2 more
doaj   +1 more source

Direct sequence spread spectrum: history, principles and modern applications

Vojnotehnički Glasnik
Introduction/purpose: Direct sequence spread spectrum modulation is widely used in many radiocommunications systems. At the first time, this modulation technique was used in military communications and navigation systems.
Nenad M. Stojanović, Branislav M. Todorović, Vladimir B. Ristić, Ivana V. Stojanović   +3 more
doaj   +1 more source

Pengaruh Level Daya Terima Smartphone Terhadap Temperatur Objek Dengan Penambahan User Pada Jaringan Wi-Fi

Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2018
Ponsel cerdas adalah telepon genggam yang mempunyai kemampuan dengan pengunaan dan fungsi menyerupai komputer. Salah satu kecanggihan teknologi smartphone adalah terdapat fitur wireless, yang mempunyai kemampuan menangkap koneksi jaringan internet ...
Rudy Yuwono, Hafis Pradana Putra
doaj   +1 more source

Evolution of Hybrid LiFi–WiFi Networks: A Survey

Sensors, 2023
Given the growing number of devices and their need for internet access, researchers are focusing on integrating various network technologies. Concerning indoor wireless services, a promising approach in this regard is to combine light fidelity (LiFi) and
Toni Besjedica, Krešimir Fertalj, Vlatko Lipovac, Ivona Zakarija   +3 more
doaj   +1 more source