Results 81 to 90 of about 1,318,827 (204)

Research and development of backscatter communications technology

Dianxin kexue
As an important technology for the deployment of Internet of things (IoT), backscatter communication performs low-power passive communication and energy harvesting by applying the incident signals, which is expected to achieve energy self-sustainability ...
Yinghui YE, Rui XU, Yujia TIAN, Guangyue LU   +3 more
doaj   +2 more sources

On the Effect of Creep on Local Lattice Orientation in Single‐Crystal Ni‐Based Superalloy Microstructures

Advanced Engineering Materials, Volume 28, Issue 17, 9 September 2026.
During creep of a single‐crystal Ni‐based superalloy, the overall crystal orientation is observed to remain constant while the microstructure evolves. Despite the lack of macroscopic rotation, small (<1°) rotations are observed on the submicron size scale and are accommodated by counteracting rotations over the scale of several micrometers.
E. J. Payton, E. B. Dursun, G. Eggeler, L. Agudo Jácome   +3 more
wiley   +1 more source

Broadband Silicon‐On‐Glass Reflective Dielectric Metasurface for THz Beam Steering in 6G Wireless Networks

Advanced Functional Materials, Volume 36, Issue 75, 17 September 2026.
A CMOS‐compatible, all‐dielectric Silicon‐on‐Glass reflective metasurface enables low–loss terahertz wavefront control for future 6G wireless communication. Mie‐resonant silicon pillars provide full phase coverage near 500 GHz, achieving experimentally validated single‐, dual‐, and five‐beam steering with sub‐1.5° angular error and less than 3 dB ...
Rithwik Premanand, Yi Ji Tan, Thomas CaiWei Tan, Prakash Pitchappa, Hemanth Kumar Cheemalamarri, A. S. Madhukumar, Ranjan Singh   +6 more
wiley   +1 more source

On‐Chip Microheater‐Based Back‐End‐of‐Line Compatible Synthesis of VO2 Films for Reconfigurable Silicon Photonics

Advanced Optical Materials, Volume 14, Issue 36, 25 September 2026.
A back‐end‐of‐line‐compatible microheater platform enables localized synthesis and reversible switching of high‐quality VO2 directly on silicon photonic chips. The approach overcomes conventional thermal‐budget and patterning constraints while delivering device performance comparable to high‐temperature‐grown films, providing a scalable pathway for ...
Khoi Phuong Dao, Siddharth Kumar, Zhiyun Xu, Junhe Zhang, Qinyuan Xue, Rui Chen, Shriram Ramanathan, Juejun Hu   +7 more
wiley   +1 more source

Backscatter Communication with Selective FSK Modulation

2024 IEEE 25th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
Backscatter communication (BackCom) is known as a low-power wireless communication technology that utilizes radio frequency signal reflections instead of actively generating them. This paper introduces a novel selective Frequency Shift Keying (SFSK) modulation scheme for BackCom, aiming to simplify tag design while ensuring equivalent decoding ...
Amus Chee Yuen Goay, Deepak Mishra 0001, Michail Matthaiou, Aruna Seneviratne   +3 more
openaire   +2 more sources

Max-Min Throughput in Hybrid of Wireless Powered NOMA and Backscatter Communications

IEEE Access, 2020
This article proposes a hybrid of backscatter communication (BackCom) and wireless powered non-orthogonal multiple access (NOMA) network for Internet of Things (IoT) applications, which consists of one power beacon (PB), multiple energy-constrained IoT ...
Wen-Gang Zhou
doaj   +1 more source

Performance Analysis of RF-Powered Cognitive Radio Networks with Integrated Ambient Backscatter Communications

, 2018
Integrating ambient backscatter communications into RF-powered cognitive radio networks has been shown to be a promising method for achieving energy and spectrum efficient communications, which is very attractive for low-power or no-power communications.
Longteng Xu, Kun Zhu, Shimin Gong, Ran Wang   +3 more
core   +1 more source

Effects of high-latitude atmospheric gravity wave disturbances on artificial HF radar backscatter [PDF]

, 2006
International audienceObservations of HF radar backscatter from artificial field-aligned irregularities in an ionosphere perturbed by travelling disturbances due to atmospheric gravity waves are presented.
Tim K. Yeoman (7583066), A. Senior, M. J. Kosch (7595327), I. W. McCrea, M. T. Rietveld (7594184), Rietveld, M. T., Senior, A., T. K. Yeoman, I. W. McCrea (7594871), M. T. Rietveld, Kosch, M. J., M. J. Kosch, A. Senior (3255282), McCrea, I. W., Yeoman, T. K.   +14 more
core   +2 more sources

Waste Factor in Backscatter Communications: Fundamentals, Potentials, and Future Challenges

IEEE Open Journal of the Communications Society
The rapid evolution from 5G toward 6G has intensified the demand for energy-efficient communication systems capable of supporting massive connectivity, ultra-low latency, and ubiquitous coverage.
Ghalya Saleh Batis, Maram Mohammed, Naveed Khan, Nasir Saeed   +3 more
doaj   +1 more source

Analytic Expressions for Radar Sea Clutter WSSUS Scattering Functions

Entropy, 2019
Bello’s stochastic linear time-varying system theory has been widely used in the wireless communications literature to characterize multipath fading channel statistics.
Corey Cooke
doaj   +1 more source