Results 31 to 40 of about 231,801 (304)
Beam‐Steering Metadevices for Intelligent Optical Wireless‐Broadcasting Communications
Advanced Photonics Research, 2023 High‐performance beam‐steering devices play a crucial role for optical wireless communication (OWC), which can meet the demand for increasing number of wireless mobile devices and emerging high‐speed multimedia applications.
Jin Tao +14 more
semanticscholar +1 more source
IEEE Photonics Journal, 2023 To address existing issues in conventional correlation method, we propose an improved synchronization method for photon-counting-based underwater optical wireless communication system employing on-off keying modulation.The proposed method jointly ...
Nuo Huang +3 more
doaj +1 more source
Spectrum-Efficient Triple-Layer Hybrid Optical OFDM for IM/DD-Based Optical Wireless Communications [PDF]
, 2020 In this paper, a triple-layer hybrid optical orthogonal frequency division multiplexing (THO-OFDM) for intensity modulation with direct detection (IM/DD) systems with a high spectral efficiency is proposed.
Ghassemlooy, Zabih +5 more
core +2 more sources
Resonant tunneling diode oscillators for optical communications [PDF]
, 2017 The ability to use resonant tunneling diodes (RTDs) as both transmitters and receivers is an emerging topic, especially with regards to wireless communications. Successful data transmission has been achieved using electronic RTDs with carrier frequencies
Al-Khalidi, Abdullah +7 more
core +2 more sources
Optical Beamforming Networks for Millimeter-Wave Wireless Communications
Applied Sciences, 2023 With the rapid data growth driven by smart phone, high-definition television and virtual reality/augmented reality devices and so on, the launched 5G and upcoming 6G wireless communications tend to utilize millimeter wave (mmWave) to achieve broad ...
Fei Duan +5 more
semanticscholar +1 more source
Iteration Time Prediction for CNN in Multi-GPU Platform: Modeling and Analysis
IEEE Access, 2019 Neural networks, as powerful models for many difficult learning tasks, have created an increasingly heavy computational burden. More and more researchers focus on how to optimize the training time, and one of the difficulties is to establish a general ...
Ziqian Pei +4 more
doaj +1 more source
IEEE Photonics Journal, 2022 We consider 3-dimensional (3D) visible light positioning (VLP) based on smartphone camera in an indoor scenario. Based on the positioning model in the quantized pixel-domain, we characterize the 3D normalized positioning error metric (NPEM) through the ...
Jiaojiao Xu, Nuo Huang, Chen Gong
doaj +1 more source
Cellular Underwater Wireless Optical CDMA Network: Potentials and Challenges [PDF]
, 2016 Underwater wireless optical communications is an emerging solution to the expanding demand for broadband links in oceans and seas. In this paper, a cellular underwater wireless optical code division multiple-access (UW-OCDMA) network is proposed to ...
Akhoundi, Farhad +5 more
core +2 more sources
A Physical Layer for Low Power Optical Wireless Communications
IEEE Transactions on Green Communications and Networking, 2021 Energy consumption is one of the critical issues in optical wireless communications transmitter design and a limiting factor to miniaturization and deployment in mobile devices.
M. Hinrichs +8 more
semanticscholar +1 more source
Optical wireless communication systems [PDF]
Optik, 2017 The emerging field of optical wireless communication (OWC) systems is seen as potential complementary technology to the radio frequency wireless communications in certain applications. It is deemed as a possible technology in the future 5th Generation communication networks to address the spectrum congestion and improve the system's capacity.
Ghassemlooy, Zabih +5 more
openaire +3 more sources