Results 91 to 100 of about 1,642 (193)

On the Performance of RIS-Assisted Wireless Communications Over Generalized Multi-Cluster Fluctuating Two-Ray Fading Channels

IEEE Access
Reconfigurable Intelligent Surfaces (RIS) are emerging as a key enabler for future wireless networks, offering cost-effective solutions to enhance coverage, improve energy efficiency, and support ultra-reliable communications.
Irina Isabel Salazar Argoti, Evelio Martin Garcia Fernandez, Henry Ramiro Carvajal Mora, Andrei Camponogara   +3 more
doaj   +1 more source

Direct detection with an optimal transfer function: toward the electrical spectral efficiency of coherent homodyne detection

Opto-Electronic Science
Complex-valued double-sideband direct detection (DD) can reconstruct the optical field and achieve a high electrical spectral efficiency (ESE) comparable to that of a coherent homodyne receiver, and DD does not require a costly local oscillator laser ...
Xingfeng Li, Jingchi Li, Xiong Ni, Hudi Liu, Qunbi Zhuge, Haoshuo Chen, William Shieh, Yikai Su   +7 more
doaj   +1 more source

Reducing OFDM-Based Radio Network Energy Consumption by Frame Format Optimization

Applied Sciences
Channel time dispersion causes inter-symbol interference (ISI) which is mitigated by the Orthogonal Frequency Division Multiplexing (OFDM) symbol cyclic prefix (CP).
Adriana Lipovac, Vlatko Lipovac, Mario Miličević, Anamaria Bjelopera   +3 more
doaj   +1 more source

Error Analysis for Semilinear Stochastic Subdiffusion with Integrated Fractional Gaussian Noise

Mathematics
We analyze the error estimates of a fully discrete scheme for solving a semilinear stochastic subdiffusion problem driven by integrated fractional Gaussian noise with a Hurst parameter H∈(0,1).
Xiaolei Wu, Yubin Yan
doaj   +1 more source

Analysis of Multi-User-Based UAV System With Outdated CSI

IEEE Open Journal of the Communications Society
In this paper, we investigate the performance of multiple-input and multiple-output (MIMO) unmanned air vehicle (UAV) based multi-user communication systems over generalized Nakagami- $m$ fading channels subject to channel feedback delays. The impact of
Parvez Shaik, Cihat Kececi, Kamal K. Garg, Muhammad Ismail, Erchin Serpedin   +4 more
doaj   +1 more source

L1 Scheme for Semilinear Stochastic Subdiffusion with Integrated Fractional Gaussian Noise

Fractal and Fractional
This paper considers a numerical method for solving the stochastic semilinear subdiffusion equation which is driven by integrated fractional Gaussian noise and the Hurst parameter H∈(1/2,1).
Xiaolei Wu, Yubin Yan
doaj   +1 more source

On universal optimal quadrature formulae [PDF]

Applications of Mathematics, 1968
openaire   +1 more source

Parametric Amplification of Continuous-Variable Entangled State for Loss-Tolerant Quantum Distributed Sensing. [PDF]

Sensors (Basel)
Li S, Wang W.
europepmc   +1 more source

Fast and Accurate GPU-Accelerated Computation of Two-Electron Four-Center Coulomb Repulsion Integrals. [PDF]

J Comput Chem
Kaur A, Chen W, Luhana GK, Silberman L, Ewert M, Bünger A, Segal U, Greif C.   +7 more
europepmc   +1 more source

Application of randomized quadrature formulas to the finite element method for elliptic equations. [PDF]

BIT Numer Math
Kruse R, Polydorides N, Wu Y.
europepmc   +1 more source