Search results for "scatter"

showing 10 items of 8475 documents

Throughput and delay analysis of HARQ with code combining over double Rayleigh fading channels

2018

This paper proposes the use of hybrid automatic repeat request (HARQ) with code combining (HARQ-CC) to offer reliable communications over double Rayleigh channels. The double Rayleigh fading channel is of particular interest to vehicleto-vehicle communication systems as well as amplify-and-forward relaying and keyhole channels. This paper studies the performance of HARQ-CC over double Rayleigh channels from an information theoretic perspective. Analytical approximations are derived for the ϵ-outage capacity, the average number of transmissions, and the throughput of HARQ-CC. Moreover, we evaluate the delay experienced by Poisson-arriving packets for HARQ-CC. We provide analytical expression…

Computer Networks and CommunicationsComputer scienceAerospace EngineeringHybrid automatic repeat request020302 automobile design & engineering020206 networking & telecommunicationsThroughput02 engineering and technologyData_CODINGANDINFORMATIONTHEORYCommunications systemsymbols.namesake0203 mechanical engineeringAutomotive Engineering0202 electrical engineering electronic engineering information engineeringsymbolsFadingElectrical and Electronic EngineeringRayleigh scatteringThroughput (business)AlgorithmDecoding methodsCommunication channelRayleigh fadingComputer Science::Information Theory
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An Ergodic Sum-of-Cisoids Simulator for Multiple Uncorrelated Rayleigh Fading Channels Under Generalized Scattering Conditions

2012

In this paper, we present a new method for the design of ergodic sum-of-sinusoids (SOS) simulators for multiple uncorrelated narrowband Rayleigh fading channels. The method, which is intended for a special class of SOS models known as sum-of-cisoids (SOC) models, enables the generation of an unlimited number of mutually uncorrelated Rayleigh fading waveforms with specified autocorrelation properties. This is in contrast to all known methods proposed for SOS simulators, which are restricted to the simulation of multiple uncorrelated Rayleigh fading channels characterized by autocorrelation functions (ACFs) derived under the isotropic scattering assumption. The excellent performance of this n…

Computer Networks and CommunicationsScatteringAutocorrelationMIMOAerospace EngineeringData_CODINGANDINFORMATIONTHEORYFading distributionNarrowbandAutomotive EngineeringWaveformFadingElectrical and Electronic EngineeringSimulationComputer Science::Information TheoryMathematicsRayleigh fadingIEEE Transactions on Vehicular Technology
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A Wideband MIMO Channel Model Derived From the Geometric Elliptical Scattering Model

2006

In this paper, we present a reference model for a wideband multiple-input multiple-output (MIMO) channel based on the geometric elliptical scattering model. The model takes into account the exact relationship between the angle of departure (AOD) and the angle of arrival (AOA). Based on this relationship, the statistical properties of the reference model are studied. Analytical solutions are presented for the three- dimensional (3D) space-time cross-correlation function (CCF), the temporal autocorrelation function (ACF), the 2D space CCF, and finally the frequency correlation function (FCF). The correlation properties are studied and visualized under the assumption of isotropic as well as no…

Computer Networks and CommunicationsScatteringComputer scienceAutocorrelationMathematical analysisMIMOCorrelation function (statistical mechanics)Channel capacityAngle of arrivalElectrical and Electronic EngineeringWidebandReference modelInformation SystemsComputer Science::Information Theory2006 3rd International Symposium on Wireless Communication Systems
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Neutral-Current Neutrino-Nucleus Scattering off Xe Isotopes

2018

Large liquid xenon detectors aiming for dark matter direct detection will soon become viable tools also for investigating neutrino physics. Information on the effects of nuclear structure in neutrino-nucleus scattering can be important in distinguishing neutrino backgrounds in such detectors. We perform calculations for differential and total cross sections of neutral-current neutrino scattering off the most abundant xenon isotopes. The nuclear structure calculations are made in the nuclear shell model for elastic scattering, and also in the quasiparticle random-phase approximation (QRPA) and microscopic quasiparticle phonon model (MQPM) for both elastic and inelastic scattering. Using suit…

Computer Science::Machine LearningNuclear and High Energy PhysicsArticle SubjectNuclear TheoryPhysics::Instrumentation and DetectorsSolar neutrinoAstrophysics::High Energy Astrophysical PhenomenaDark matterNuclear TheoryFOS: Physical sciencesInelastic scatteringComputer Science::Digital Libraries01 natural sciencesNuclear Theory (nucl-th)Nuclear physicsStatistics::Machine LearningHigh Energy Physics - Phenomenology (hep-ph)neutrino physics0103 physical sciencesIsotopes of xenonsironta010306 general physicsPhysicsElastic scatteringneutrino-nucleus scatteringta114010308 nuclear & particles physicsScatteringHigh Energy Physics::PhenomenologyNuclear shell modelneutriinotlcsh:QC1-999High Energy Physics - PhenomenologyComputer Science::Mathematical SoftwareHigh Energy Physics::ExperimentNeutrinolcsh:PhysicsAdvances in High Energy Physics
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"Table 24" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."

1997

3-jet rate for the Jade Algorithm.

Computer Science::Multiagent Systems133.0E+ E- --> 3JETAstrophysics::High Energy Astrophysical PhenomenaE+ E- ScatteringIntegrated Cross SectionExclusiveHigh Energy Physics::ExperimentJet ProductionCross SectionSIGComputer Science::Distributed Parallel and Cluster Computing
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"Table 30" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."

1996

Differential 3-jet rate for the JADE Algorithm. Corrected to final state particles. YCUT is the jet finding cutt-off parameter.

Computer Science::Multiagent SystemsDN/DSIGE+ E- --> 3JETAstrophysics::High Energy Astrophysical PhenomenaE+ E- ScatteringExclusiveHigh Energy Physics::Experiment91.2Single Differential DistributionJet Production
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"Table 23" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."

1997

2-jet rate for the Jade Algorithm.

Computer Science::Multiagent SystemsDijet Production133.0Astrophysics::High Energy Astrophysical PhenomenaE+ E- ScatteringIntegrated Cross SectionExclusiveHigh Energy Physics::ExperimentJet ProductionE+ E- --> 2JETCross SectionSIGComputer Science::Distributed Parallel and Cluster Computing
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"Table 28" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."

1996

Differential 2-jet rate for the JADE Algorithm. Corrected to final state particles. YCUT is the jet finding cutt-off parameter.

Computer Science::Multiagent SystemsDijet ProductionDN/DSIGAstrophysics::High Energy Astrophysical PhenomenaE+ E- ScatteringExclusiveHigh Energy Physics::Experiment91.2Single Differential DistributionJet ProductionE+ E- --> 2JET
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"Table 25" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."

1997

4-jet rate for the Jade Algorithm.

Computer Science::Multiagent SystemsE+ E- --> 4JET133.0Astrophysics::High Energy Astrophysical PhenomenaE+ E- ScatteringIntegrated Cross SectionExclusiveHigh Energy Physics::ExperimentJet ProductionCross SectionSIGComputer Science::Distributed Parallel and Cluster Computing
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"Table 32" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."

1996

Differential 4-jet rate for the JADE Algorithm. Corrected to final state particles. YCUT is the jet finding cutt-off parameter.

Computer Science::Multiagent SystemsE+ E- --> 4JETDN/DSIGAstrophysics::High Energy Astrophysical PhenomenaE+ E- ScatteringExclusiveHigh Energy Physics::Experiment91.2Single Differential DistributionJet Production
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