Results 11 to 20 of about 461,573 (294)
Orbital angular momentum and beyond in free-space optical communications. [PDF]
Nanophotonics, 2022 Wang J +5 more
europepmc +2 more sources
Envelope tracking of a radio frequency amplifier for Long Term Evolution using a three-level class-G modulator [PDF]
Advances in Radio Science, 2013 In this contribution, efficiency enhancement of a radio frequency (RF) power amplifier (PA) for Long Term Evolution (LTE) base stations using envelope tracking is investigated. The dynamically adapted drain bias voltage is provided by a three-level class-
A. Bräckle +4 more
doaj +1 more source
Map-Assisted Constellation Design for mmWave WDM With OAM in Short-Range LOS Environment
IEEE Open Journal of the Communications Society, 2023 We consider a system that integrates positioning and single-user millimeter wave (mmWave) communication, where the communication part adopts wavelength division multiplexing (WDM) and orbital angular momentum (OAM).
Yuan Wang +3 more
doaj +1 more source
IEEE Photonics Journal, 2022 We address the lens optimization and signal processing for array-based multiple-input multiple-output (MIMO) visible light communication, especially under link misalignment.
Jiaqi Wei +3 more
doaj +1 more source
Deep Learning-Based Robust Visible Light Positioning for High-Speed Vehicles
Photonics, 2022 Robustness is a key factor for real-time positioning and navigation, especially for high-speed vehicles. While visible light positioning (VLP) based on LED illumination and image sensors is widely studied, most of the VLP systems still suffer from the ...
Danjie Li +12 more
doaj +1 more source
Controllable 3D display system based on frontal projection lenticular screen [PDF]
Journal of the European Optical Society-Rapid Publications, 2014 A novel auto-stereoscopic three-dimensional (3D) projection display system based on the frontal projection lenticular screen is demonstrated. It can provide high real 3D experiences and the freedom of interaction.
Feng Q. +6 more
doaj +1 more source
A Hybrid Model for Central Bank Digital Currency Based on Blockchain
IEEE Access, 2021 With the development of blockchain technology, the research on digital currency is attracting more and more attention, especially Central Bank Digital Currency (CBDC), which plays an important role in national economic construction.
Jinnan Zhang +6 more
doaj +1 more source
Effect of side-mode suppression ratio on the performance of self-seeded gain-switched optical pulses in lightwave communications systems [PDF]
, 1999 The side-mode suppression ratio (SMSR) of self-seeded gain-switched optical pulses is shown to be an extremely important factor for the use of these pulses in optical communications systems.
Anandarajah, Prince M., Barry, Liam P.
core +1 more source
Photonic Crystal and Photonic Crystal Fibers Communications [PDF]
, 2016 The development of all optical communications could benefit from the index guiding photonic crystal fibers. In communication the photonic crystal fibers could provide many new solutions.
Muse, H. A. (Haider)
core +2 more sources
Photonics, 2022 In order to meet the massively increasing requirements of big-data applications, data centers (DCs) are key infrastructures to cope with the associated demands, such as high performance, easy scalability, low cabling complexity and low power consumption.
Shaojuan Zhang +3 more
doaj +1 more source