Results 51 to 60 of about 1,535 (206)

A New Lossless Fault-Tolerance Mechanism in Hybrid Wireless-Optical Broadband Access Network

IEEE Access, 2018
With the tremendous growth of the traffic demand of emerging 5G applications, the survivability has become more significant in the wireless-optical broadband access network (WOBAN), since any failure of the network components could interrupt a large ...
Hong Zhang, Ruyan Wang, Honggang Wang, Guangkai Wu   +3 more
doaj   +1 more source

Theory of Supercritical Coupling and Generalized Bound States in the Continuum

Laser &Photonics Reviews, EarlyView.
We develop a general theory of supercritical coupling and generalized bound states in the continuum (gBICs), revealing how interference between radiative and absorptive channels enables quality factors beyond conventional material‐loss limits. The framework unifies non‐Hermitian mode coupling, causality‐driven reactive interactions, and interference ...
Sergio Balestrieri, Bruno Miranda, Silvia Romano, Gianluigi Zito   +3 more
wiley   +1 more source

Optical Adaptive Antenna Array for Multiuser Mobile Optical Communication

IEEE Access, 2019
In this paper, an optical adaptive antenna array system for multi-user optical mobile communication is studied. A coherent signal source is embedded in a spherical optical phased cell array with an external spherical lens system.
Haibo Wang, Zaichen Zhang, Jian Dang, Liang Wu   +3 more
doaj   +1 more source

Interleaved Diffractive Networks for Information Transfer Through Random Diffusers

Laser &Photonics Reviews, EarlyView.
This work presents a cascaded diffractive optical network that enables information transfer through random, unknown diffusers using passive, interleaved structured layers that mitigate scattering without digital computation. A hybrid optical‐digital version further improves robustness and reconstruction fidelity under distortions, with both simulations
Yuhang Li, Yiyang Wu, Shiqi Chen, Xilin Yang, Aydogan Ozcan   +4 more
wiley   +1 more source

DrLS: Distortion‐Resistant Lossless Steganography via Colour Depth Interpolation

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT The lossless data steganography is to hide a certain amount of information into a container image. Previous lossless steganography methods fail to strike a balance between capacity, imperceptibility, accuracy, and robustness, commonly vulnerable to distortion on container images.
Youmin Xu, Xuanyu Zhang, Xiandong Meng, Jian Zhang   +3 more
wiley   +1 more source

A Quantised Push‐Sum Distributed Adaptive Momentum Algorithm for Optimisation Over Directed Networks

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT In this paper, we investigate a distributed constrained optimisation problem over directed networks. The agents in the networks conduct local computations and communications, endeavouring to collaboratively minimise the aggregation of all locally known convex cost functions subject to a global constraint set.
Qingguo Lü, Mingyu Guan, Chenglong He, Chen Chen, Xiangguang Dai, Man‐Fai Leung, Wei Zhang   +6 more
wiley   +1 more source

Continuous-Variable Arbitrated Quantum Signature Based on Dense Coding and Teleportation

IEEE Access, 2019
Motivated by the dense coding and teleportation of two-mode squeezed vacuum (TMSV) state, a continuous-variable arbitrated quantum signature (CV-AQS) scheme is proposed.
Xiaoping Lou, Hu Long, Wensheng Tang, Yuguang Yang, Jian Li   +4 more
doaj   +1 more source

Splatshop: Efficiently Editing Large Gaussian Splat Models

Computer Graphics Forum, EarlyView.
Abstract We present Splatshop, a highly optimized toolbox for interactive editing (selection, deletion, painting, transformation, …) of 3D Gaussian Splatting models. Utilizing a comprehensive collection of heuristic approaches, we carefully balance between exact and fast rendering to enable precise editing without sacrificing real‐time performance. Our
Markus Schütz, Christoph Peters, Florian Hahlbohm, Elmar Eisemann, Marcus Magnor, Michael Wimmer   +5 more
wiley   +1 more source

A boost PFC rectifier with a passive lossless snubber circuit using coupled inductors methods

, 2012
In this paper, a boost PFC rectifier with a novel passive lossless snubber circuit is proposed to minimize switching loss for high power applications. The proposed lossless snubber is composed of the coupled inductors merged to the boost inductor.
Baek, Ju Won, Jee-Hoon Jung, Jong-Hyun Kim, Hee-Je Kim, Ju-Won Baek, Myung-Hyo Ryu, Kim, Jong-Hyun, Ryu, Myung-Hyo, Jung, Jee Hoon, Kim, Hee-Je, Kim, Ho-Sung, Ho-Sung Kim   +11 more
core   +1 more source

Lossless linear analog compression [PDF]

, 2016
We establish the fundamental limits of lossless linear analog compression by considering the recovery of random vectors x in R^m from the noiseless linear measurements y = Ax with measurement matrix A in R^{n times m}. Specifically, for a random vector x
Riegler, Erwin Herbert, Helmut Bolcskei, Bolcskei, Helmut, De Lellis, Camillo, Camillo, De Lellis, Riegler, Erwin, Giovanni Alberti, Camillo De Lellis, ALBERTI, GIOVANNI, Erwin Riegler, Koliander, Gunther, Gunther Koliander   +11 more
core   +1 more source