Results 81 to 90 of about 3,041,315 (395)

Photonic integration technologies for indoor optical wireless communications [PDF]

, 2018
Indoor optical wireless communication (OWC) using steerable infrared beams is regarded as an important component in future 5G network. Photonic integration technologies can meet the criteria of such application, and provide low-cost, high-performance and
Cao, Zizheng, Jiao, Y Yuqing, Jiao, Yuqing, Cao, Z Zizheng   +3 more
core   +1 more source

Effectiveness of rTMS on Working Memory and Inhibitory Impairments in Patients With Post‐Stroke Executive Deficits

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao, Rongwei Du, Zhujun Wang, Yang Gao, Meiling Cheng, Xianglong Wang, Wen Wu   +6 more
wiley   +1 more source

Secrecy Rate Bounds in Spatial Modulation-Based Visible Light Communications under Signal-Dependent Noise Conditions

Photonics
This study examines the physical-layer security of an indoor visible light communication (VLC) system using spatial modulation (SM), which consists of several transmitters, an authorized receiver, and a passive adversary.
Yahya M. Al-Moliki, Ali H. Alqahtani, Mohammed T. Alresheedi, Yahya Al-Harthi   +3 more
doaj   +1 more source

Electro‐optical spiking neural networks using an enhanced optical axon with pulse amplitude modulation and automatic gain controller

IET Optoelectronics, 2023
Visible light communication can be leveraged to establish a wireless link between neurons in spiking networks even when neural areas are in relative motions.
George‐Iulian Uleru, Mircea Hulea, Othman Isam Younus, Zabih Ghassemlooy, Sujan Rajbhandari   +4 more
doaj   +1 more source

Modulator-free quadrature amplitude modulation signal synthesis

, 2014
The ability to generate high-speed on-off-keyed telecommunication signals by directly modulating a semiconductor laser’s drive current was one of the most exciting prospective applications of the nascent field of laser technology throughout the 1960s ...
Kelly, Brian, O’Carroll, John, Slavík, Radan, Phelan, Richard, Richardson, David J., Liu, Zhixin, Kakande, Joseph   +6 more
core   +1 more source

Sertraline Treatment Can Mimic Niemann‐Pick Type C Biomarker Profile: A Diagnostic Pitfall

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Oxysterols (cholestane‐3β,5α,6β‐triol and 7‐ketocholesterol) and N‐palmitoyl‐O‐phosphocholineserine (PPCS) are sensitive biomarkers for Niemann‐Pick disease type C (NPC) screening. However, false‐positive results occur, with a biomarker profile suggestive of NPC despite the absence of pathogenic variants in genes involved in NPC or ...
Maria Makrygianni, Cecile Pagan, Antony Citterio‐Quentin, Isabelle Rouvet, Giulia Dingeo, Cyril Hanin, Claudine Laurent‐Levinson, Samia Pichard, Bénédicte Héron, Clément Gourguechon, Daniele Mandia, Jerome Guitton, Carole Lacout, Nicolas Schleinitz, Florient Potier, Olivier Flabeau, Elsa Besse‐Pinot, Foudil Lamari, Magali Pettazzoni, Yann Nadjar   +19 more
wiley   +1 more source

Coverage Performance of Non-Lambertian Underwater Wireless Optical Communications for 6G Internet of Things

Inventions
In medium- and short-range underwater application scenarios, thanks to the superior performance in transmission bandwidth, link latency, and security, underwater wireless optical communication (UWOC) is growing to be a promising complement to the mature ...
Jupeng Ding, Chih-Lin I, Jintao Wang, Jian Song   +3 more
doaj   +1 more source

Mitigation of Scintillation Effects in WDM FSO System using Multibeam Technique

Journal of Telecommunications and Information Technology, 2017
Free Space Optical communication (FSO) has engrossed a large section of researchers in recent times due to its wide bandwidth, effortless deployment and immune links making it appropriate for communication purposes.
Marvi Grover, Preeti Singh, Pardeep Kaur
doaj   +1 more source

Low-Complexity Optical Transmitter Design for Future Generations [PDF]

, 2022
Chakravarthy Gunturu, Siva Prasad Valluri   +1 more
openalex   +1 more source

Electronic–photonic convergence for silicon photonics transmitters beyond 100 Gbps on–off keying

, 2020
We present design concepts for optical modulators without using any equalization or bespoke fabrication techniques. The demonstrated silicon photonics transmitter can operate at 100 Gbps OOK, while the power efficiency of the driver is 2.03 pJ/bit.
Ke Li, Shenghao Liu, D. Thomson, Weiwei Zhang, Xingzhao Yan, F. Meng, C. Littlejohns, H. Du, M. Banakar, M. Ebert, W. Cao, Dehn T. Tran, Bigeng Chen, A. Shakoor, P. Petropoulos, G. Reed   +15 more
semanticscholar   +1 more source