Results 71 to 80 of about 18,013 (228)
Engineering Reports, 2022 In this article, a multifunctional optical processing unit for differential eight phase‐shift‐keying (D8PSK) and differential quadrature phase‐shift‐keying (DQPSK) based on four‐wave mixing (FWM) effects in semiconductor optical amplifier (SOA) is ...
Wei Yang, Yafei Wang
doaj +1 more source
Digital Rights Activism in Multilevel Governance
European Policy Analysis, EarlyView.ABSTRACT Multilevel governance (MLG) without a clear hierarchical structure can create power imbalances among various actors, particularly in settings with overlapping jurisdictions and policy areas. This dynamic is especially pronounced in Internet governance, which faces a complex interplay of domestic laws, state interdependence, and heightened ...
Alison Harcourt
wiley +1 more source
Symbol error rate analysis for M-QAM modulated physical-layer network coding with phase errors
, 2012 Recent theoretical studies of physical-layer network coding (PNC) show much interest on high-level modulation, such as M-ary quadrature amplitude modulation (M-QAM), and most related works are based on the assumption of phase synchrony.
Huang, Y +3 more
core +1 more source
A low-cost alternative scheme to detect a 100 Gbps PM-DQPSK signal [PDF]
, 2014 We propose and demonstrate a low-cost alternative scheme of direct-detection to detect a 100Gbps polarization-multiplexed differential quadrature phase-shift keying (PM-DQPSK) signal.
Chen, Xiaoyong +2 more
core +2 more sources
Robust Control Using a Matrix Converter to Enhance Wind Turbine Systems
Energy Science &Engineering, EarlyView.This study uses a more efficient and effective solution to improve the operational performance of a wind turbine‐based power system. This system uses a doubly fed induction generator and relies on a matrix converter and fractional‐order proportional–integral controller.
Sihem Ghoudelbourk +4 more
wiley +1 more source
Asymptotic security of continuous-variable quantum key distribution with a discrete modulation
, 2019 We establish a lower bound on the asymptotic secret key rate of continuous-variable quantum key distribution with a discrete modulation of coherent states.
Diamanti, Eleni +3 more
core +3 more sources
Error-rate floors in differential n-level phase-shift-keying coherent receivers employing electronic dispersion equalisation [PDF]
, 2011 A model for the phase noise influence in differential n-level phase shift keying (nPSK) systems and 2n-level quadrature amplitude modulated (2nQAM) systems employing electronic dispersion equalization and quadruple carrier phase extraction is presented ...
Friberg, Ari T. +5 more
core +1 more source
A Hybrid EV Charging Architecture Integrating DC Fast Charging and Wireless Power Transfer
Energy Science &Engineering, EarlyView.A hybrid EV charging architecture combining DC fast charging and wireless power transfer is proposed. The system achieves high efficiency, grid compliance, and reliable bidirectional operation, offering a scalable solution that enhances user convenience while paving the way for smarter, future‐ready EV charging infrastructure.
Ali Almaktoof +3 more
wiley +1 more source
Phase Factor Optimization for QPSK Signals Generated from MZM Based on Optical Carrier Suppression
IEEE Photonics Journal, 2017 We propose and experimentally demonstrate one novel scheme to improve the performance of the vector millimeter-wave (mm-wave) signal generated by intensity modulator based on optical carrier suppression.
Jianjun Yu, Long Chen
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Energy Science &Engineering, EarlyView.Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen +6 more
wiley +1 more source