Frame delay and loss analysis for video transmission over time-correlated 802.11A/G channels [PDF]
, 2007 This paper presents simulation results for the transmission of unicast MAC frames over 802.11a/g. Fading channel models at various Doppler frequencies are developed to generate time- correlated SNR waveforms.
Bull, David +4 more
core +1 more source
2D Modeling of Wave Propagation in Shallow Water by the Method of Characteristics [PDF]
Archives of Acoustics, 2022 In this paper, a 2D numerical modeling of sound wave propagation in a shallow water medium that acts as a waveguide, are presented. This modeling is based on the method of characteristic which is not constrained by the Courant–Friedrichs–Lewy (CFL ...
Mohammad Reza Khalilabadi
doaj +1 more source
Analysis of losses in 2D photonic crystal waveguides using the 3D finite difference time domain (FDTD) method [PDF]
, 2002 The 3D FDTD method is used to obtain loss versus hole depth in a 2D photonic crystal waveguide by simulating two different length guides. The transmission results are validated against published measured data.
Craddock, IJ +4 more
core +2 more sources
Analytical and computational acoustic modelling of side outlet muffler and its extension in the modelling of tapered side outlet [PDF]
Archives of Acoustics, 2022 Mufflers are popular in the suppression of noise levels coming from various machinery. The most common parameters for the evaluation of the performance of mufflers are transmission loss, noise level, and insertion loss. The transmission loss is evaluated
Sandeep Kumar Vishwakarma +1 more
doaj +1 more source
Transmission enhancement in loss-gain multilayers by resonant suppression of reflection [PDF]
, 2017 Using the transfer-matrix approach and solving time-domain differential equations, we analyze the loss compensation mechanism in multilayer systems composed of an absorbing transparent conductive oxide and dielectric doped with an active material.
Lavrinenko, Andrei V. +4 more
core +2 more sources
Topology Optimization of Low-Loss Z-Bend 2D Photonic Crystal Waveguide
Photonics, 2023 In this article, we design a low-loss, high-bandwidth Z-bend photonic silicon crystal waveguide bending in a triangular lattice through topology optimization.
Gang Liu +6 more
doaj +1 more source
Design and Fabrication Challenges for Millimeter-Scale Three-Dimensional Phononic Crystals
Crystals, 2017 While phononic crystals can be theoretically modeled with a variety of analytical and numerical methods, the practical realization and comprehensive characterization of complex designs is often challenging.
Frieder Lucklum, Michael J. Vellekoop
doaj +1 more source
The millimeter-wave properties of superconducting microstrip lines [PDF]
, 2002 We have developed a novel technique for making high quality measurements of the millimeter-wave properties of superconducting thin-film microstrip transmission lines. Our experimental technique currently covers the 75-100 GHz band. The method is based on
LeDuc, H. G. +4 more
core +1 more source
Transmission loss in manatee habitats
The Journal of the Acoustical Society of America, 2006 The Florida manatee is regularly exposed to high volumes of vessel traffic and other human-related noise because of its coastal distribution. Quantifying specific aspects of the manatee’s acoustic environment will allow for a better understanding of how these animals respond to both natural and human-induced changes in their environment.
Miksis-Olds, Jennifer L. +1 more
openaire +4 more sources
Predicting Acoustic Transmission Loss Uncertainty in Ocean Environments with Neural Networks
Journal of Marine Science and Engineering, 2022 Computational predictions of acoustic transmission loss (TL) in ocean environments depend on the relevant environmental characteristics, such as the sound speed field, bathymetry, and seabed properties.
Brandon M. Lee +2 more
doaj +1 more source