Results 31 to 40 of about 286,579 (299)

Massively parallel computation of globally optimal shortest paths with curvature penalization

open access: yesConcurrency and Computation: Practice and Experience, Volume 35, Issue 2, 25 January 2023., 2023
Abstract We address the computation of paths globally minimizing an energy involving their curvature, with given endpoints and tangents at these endpoints, according to models known as the Reeds‐Shepp car (reversible and forward variants), the Euler‐Mumford elasticae, and the Dubins car. For that purpose, we numerically solve degenerate variants of the
Jean‐Marie Mirebeau   +4 more
wiley   +1 more source

On the Performance of Turbo Codes in Quasi-Static Fading Channels [PDF]

open access: yes, 2005
In this paper, we investigate in detail the performance of turbo codes in quasi-static fading channels both with and without antenna diversity. First, we develop a simple and accurate analytic technique to evaluate the performance of turbo codes in quasi-static fading channels.
arxiv   +1 more source

On receiver design for low density signature OFDM (LDS-OFDM) [PDF]

open access: yes, 2012
Low density signature orthogonal frequency division multiplexing (LDS-OFDM) is an uplink multi-carrier multiple access scheme that uses low density signatures (LDS) for spreading the symbols in the frequency domain.
Al-Imari, Mohammed   +4 more
core   +1 more source

The effect of volute surface roughness on the performance of automotive turbocharger turbines

open access: yesJournal of the Global Power and Propulsion Society, 2017
The roughness level of the turbine housing’s internal surfaces can affect the total pressure loss, and hence the efficiency, of turbine stages for automotive turbochargers significantly.
Andreas Lintz
doaj   +1 more source

Turbo EP-based Equalization: a Filter-Type Implementation [PDF]

open access: yes, 2018
This manuscript has been submitted to Transactions on Communications on September 7, 2017; revised on January 10, 2018 and March 27, 2018; and accepted on April 25, 2018 We propose a novel filter-type equalizer to improve the solution of the linear ...
Arias-de-Reyna, Eva   +3 more
core   +2 more sources

An Energy Storage System with Binary Cycle Gas Compressionand Its Feasibility Analysis

open access: yes南方能源建设
[Introduction] The compressed air energy storage system has a very large air storage volume and high pressure, and usually uses the underground salt cavern as the gas storehouse. Project development is constrained by scarce salt cavern resources.
Kaiyun ZHENG   +2 more
doaj   +1 more source

Application of model updating techniques to turbomachinery rotor components

open access: yesAdvances in Mechanical Engineering, 2019
Model updating techniques are commonly used to improve simulation accuracy. Experimental data of component testing under laboratory conditions are normally used to improve analytical predictions of that component under operational conditions.
Roberto Alonso   +2 more
doaj   +1 more source

Separate Turbo Code and Single Turbo Code Adaptive OFDM Transmissions

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
This paper discusses the application of adaptive modulation and adaptive rate turbo coding to orthogonal frequency-division multiplexing (OFDM), to increase throughput on the time and frequency selective channel.
Lei Ye, Alister Burr
doaj   +2 more sources

Natural reproduction in tropical buffalo herds

open access: yesRevista Científica, 2023
Reproduction is one of the most important aspects of farm management that, combined with genetics, allows the productive system to develop and meet minimum productivity standards for sustainability and market demands.
Laura Gómez Estrada
doaj  

Turbo Packet Combining Strategies for the MIMO-ISI ARQ Channel [PDF]

open access: yesIEEE Transactions on Communications, vol. 57, no. 12, pp. 3782-3793, Dec. 2009, 2009
This paper addresses the issue of efficient turbo packet combining techniques for coded transmission with a Chase-type automatic repeat request (ARQ) protocol operating over a multiple-input--multiple-output (MIMO) channel with intersymbol interference (ISI).
arxiv   +1 more source

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