Results 41 to 50 of about 25,571,688 (374)
IEEE Photonics Journal, 2023 We experimentally investigate the problem of monitoring the Kerr-nonlinearity coefficient $\gamma$ from transmitted and received data for a single-mode fiber link of 1600 km length. We compare the accuracy and speed of three different approaches.
Pascal de Koster +4 more
doaj +1 more source
Bayesian compressive sensing framework for spectrum reconstruction in Rayleigh fading channels [PDF]
, 2016 Compressive sensing (CS) is a novel digital signal processing technique that has found great interest in many applications including communication theory and wireless communications.
Ghafoor, Abdul +3 more
core +1 more source
Reconfigurable Intelligent Surfaces for Wireless Communications: Principles, Challenges, and Opportunities [PDF]
IEEE Transactions on Cognitive Communications and Networking, 2020 Recently there has been a flurry of research on the use of reconfigurable intelligent surfaces (RIS) in wireless networks to create smart radio environments.
Mohamed A. Elmossallamy +5 more
semanticscholar +1 more source
Design of Satellite Operations Subsystem Using Dynamic Fault Management Mechanism [PDF]
Journal of Astronomy and Space Sciences, 1998 Satellite Operations Subsystem in the Mission Control Element provides real-time monitoring of the satellite status and transmits telecommands to control the satellite during the contact time.
Jaehoon Kim, Heesook Mo, Woonchan Jung
doaj
Analytical Study on Mission Control Element System Availability for Korea Multipurpose Satellite (KOMPSAT) I [PDF]
Journal of Astronomy and Space Sciences, 1998 To estimate the availability of the MCE for KOMPSAT I, mathematical models of H/W and S/W availability, the availability estimating methods for parallel and redundant system were presented. Furthermore, to improve and estimate the MCE system availability,
J. W. Eun, D. I. Chang, J. M. Kim
doaj
DNN-Based Map Deviation Detection in LiDAR Point Clouds
IEEE Open Journal of Intelligent Transportation Systems, 2023 In this work we present a novel deep learning-based approach to detect and specify map deviations in erroneous or outdated high-definition (HD) maps using both sensor and map data as input to a deep neural network (DNN).
Christopher Plachetka +4 more
doaj +1 more source
Significantly High Modulation Efficiency of Compact Graphene Modulator Based on Silicon Waveguide
Scientific Reports, 2018 We theoretically and experimentally demonstrate a significantly large modulation efficiency of a compact graphene modulator based on a silicon waveguide using the electro refractive effect of graphene.
Haowen Shu +6 more
doaj +1 more source
Advanced Science, 2023 Further improvement of the performance and stability of inverted perovskite solar cells (PSCs) is necessary for commercialization. Here, ferrocene derivative dibenzoylferrocene (DBzFe) is used as an additive to enhance the performance and stability of MA‐
Huan Bi +15 more
doaj +1 more source
A Security Credential Management System for V2X Communications [PDF]
IEEE transactions on intelligent transportation systems (Print), 2018 The U.S. Department of Transportation (USDOT) issued a proposed rule on January 12, 2017 to mandate vehicle-to-vehicle safety communications in light vehicles in the U.S. Cybersecurity and privacy are major challenges for such a deployment.
Benedikt Brecht +6 more
semanticscholar +1 more source
Joint Cache-Channel Coding over Erasure Broadcast Channels
, 2015 We consider a cache-aided communications system in which a transmitter communicates with many receivers over an erasure broadcast channel. The system serves as a basic model for communicating on-demand content during periods of high network congestion ...
Timo, Roy, Wigger, Michele
core +1 more source