Results 61 to 70 of about 231,801 (304)

Low-Complexity Receiver for HACO-OFDM in Optical Wireless Communications

IEEE Wireless Communications Letters, 2021
In this letter, a low-complexity receiver (Rx) is proposed for hybrid asymmetrically clipped optical orthogonal frequency division multiplexing (HACO-OFDM). Owing to the special time-domain property of HACO-OFDM, overlaid asymmetrically clipped OFDM (ACO-
Tian Zhang, Longfei Sun, Chenyi Zhao, S. Qiao, Zabih Ghassemlooy   +4 more
semanticscholar   +1 more source

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

Advanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp, Brahmdutta Dixit, Yifei Yang, Deyuan Lyu, Thomas Peterson, Qi Jia, Yu‐Chia Chen, Jian‐Ping Wang   +7 more
wiley   +1 more source

A 1Mbps Real-Time NLOS UV Scattering Communication System With Receiver Diversity Over 1km

IEEE Photonics Journal, 2018
In the nonline of sight (NLOS) ultraviolet (UV) scattering communication, the received signals exhibit the characteristics of discrete photoelectrons due to the extremely large path loss.
Guanchu Wang, Kun Wang, Chen Gong, Difan Zou, Zhimeng Jiang, Zhengyuan Xu   +5 more
doaj   +1 more source

Petahertz communication: Harmonizing optical spectra for wireless communications

Digital Communications and Networks, 2021
With the rapid deployment of Next-Generation Networks (NGN), the research community has initiated discussions on an entirely new suite of optical enabling techniques.
Zhengyuan Xu, Weijie Liu, Zhaocheng Wang, Lajos Hanzo   +3 more
doaj   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

Revolutionizing Electrical Engineering Education: A New Active Learning Method Based on Student-Generated Multimedia Content

IEEE Access
A novel active and collaborative learning approach that uses videos to enhance student participation and motivation in Electrical Engineering courses at the University of Málaga, is implemented.
Ruben Boluda-Ruiz, Pedro Salcedo-Serrano, Beatriz Castillo-Vazquez, Antonio Garcia-Zambrana   +3 more
doaj   +1 more source

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

Advanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin, Wenhao Wang, Thomas Caiwei Tan, Abhishek Kumar, Ridong Jia, Nikhil Navaratna, Ranjan Singh, Lijuan Xie   +7 more
wiley   +1 more source

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

Advanced Functional Materials, EarlyView.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To, Jiachen Du, Cyril Decroze, Laure Huitema, Aurelian Crunteanu, Hang Wong   +5 more
wiley   +1 more source

Real-Time Water-to-Air Communication System Under Dynamic Water Surface and Strong Background Radiation

IEEE Photonics Journal
This work explores water-to-air optical wireless communication (W2A-OWC) transmission schemes and realizes a prototype of real-time W2A-OWC system based on field programmable gate array.
Tianrui Lin, Tianjian Wei, Qingqing Hu, Chunfang Fu, Nuo Huang, Xinhui Liu, Li Tang, Liang Su, Jianghua Luo, Chen Gong   +9 more
doaj   +1 more source

Multi-Layer Superimposed Transmission for Optical Wireless Scattering Communication

IEEE Photonics Journal, 2019
We investigate the multi-layer superimposed transmission for optical wireless scattering communication where the symbol boundaries on different signal layers are not necessarily aligned in the time domain.
Guanchu Wang, Chen Gong, Zhimeng Jiang, Zhengyuan Xu   +3 more
doaj   +1 more source