Results 91 to 100 of about 7,034 (308)
IEEE Photonics Journal, 2017 In addition to large path loss, non-line-of-sight (NLOS) optical wireless scattering communication suffers time dispersion due to the multipath nature of the NLOS scattering channel.
Yu Sun +3 more
doaj +1 more source
Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems
Advanced Electronic Materials, EarlyView.Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang +9 more
wiley +1 more source
Advanced Electronic Materials, EarlyView.Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley +1 more source
High‐Speed Flexible Schottky Diodes Based on Carbon Nanotubes
Advanced Electronic Materials, EarlyView.We demonstrate a flexible Schottky diode based on carbon nanotube network thin film, and the devices are fabricated via a low‐temperature process on a PI substrate, which exhibits excellent radio‐frequency characteristics, with a high responsivity 6 A/W at zero bias, a high intrinsic cut‐off frequency reaching 153 GHz, and an extrinsic cut‐off ...
Yan Li +6 more
wiley +1 more source
Indoor Optical Wireless Channel Characteristics With Distinct Source Radiation Patterns
IEEE Photonics Journal, 2016 In conventional indoor optical wireless communication, the transmitter is usually empirically viewed as a source with a Lambertian radiation pattern.
Jupeng Ding, Chih-Lin I, Zhengyuan Xu
doaj +1 more source
Hadamard Coded Modulation: An Alternative to OFDM for Optical Wireless Communications [PDF]
, 2014 Mohammad Noshad, Maïté Brandt-Pearce
openalex +1 more source
Recent Advances in Programmable Metasurfaces and Meta‐Devices
Advanced Electronic Materials, EarlyView.Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao +4 more
wiley +1 more source
IEEE Photonics JournalThis paper studies the constellation optimization approach for multiple-input multiple-output (MIMO) visible light communication (VLC) systems with signal-dependent noise (SDN).
Jiaqi Wei +6 more
doaj +1 more source
An Optimization Design of Ultra Dense Networks Balancing Mobility and Densification
IEEE Access, 2018 The ultra-dense network (UDN) has been identified as an appealing solution to address the huge service demands in future 5G and beyond. In this paper, we propose an optimization design of UDN balancing user mobility and network densification, where the ...
Jinkang Zhu, Ming Zhao, Shengli Zhou
doaj +1 more source
HCM-based Indoor Optical Wireless Communications: Timing and Data Recovery
, 2023 Masoud Johar +3 more
openalex +1 more source