Search results for "Mobile radio channel"

showing 5 items of 5 documents

An Improved Iterative Nonlinear Least Square Approximation Method for the Design of SISO Wideband Mobile Radio Channel Simulators

2012

In this paper, we present an improved version of the iterative nonlinear least square approximation (INLSA) method for designing measurement-based single-input single-output (SISO) wideband channel simulators. The proposed method aims to fit the time-frequency correlation function (TFCF) of the simulation model to that of a measured channel. The parameters of the simulation model are determined iteratively by minimizing the Frobenius norm, which serves as a measure for the fitting error. In contrast to the original INLSA method, the proposed approach provides a unique optimized set of model parameters, which guarantees a quasi-perfect fitting with respect to the TFCF. We analyze the perform…

Pulmonary and Respiratory MedicineEngineeringbusiness.industryMatrix normContrast (statistics)Correlation function (quantum field theory)Nonlinear systemGoodness of fitPediatrics Perinatology and Child HealthElectronic engineeringLeast square approximationWidebandbusinessAlgorithmMobile radio channelREV Journal on Electronics and Communications
researchProduct

An Exact Solution for the Level-Crossing Rate and the Average Duration of Fades of the Envelope of Sum-of-Cisoids Processes

2012

Authors version of an article published in the journal: Procedia Technology. Also available from the publisher at: http://dx.doi.org/10.1016/j.protcy.2012.03.004 Sum-of-cisoids (SOC) processes provide a physically and numerically appealing framework for the modelling and simulation of a wide class of mobile radio channels. This paper is concerned with the problem of finding a general solution for the level-crossing rate (LCR) and the average duration of fades (ADF) of the envelope of SOC processes. Exact expressions are derived for the LCR and the ADF by taking into account that the inphase component, the quadrature component, and the time derivatives of the inphase and quadrature component…

mobile radio channelsVDP::Mathematics and natural science: 400::Information and communication science: 420::Communication and distributed systems: 423Average durationlevel-crossing rateLevel crossingsum-of-cisoidsRayleigh fadingFading distributionExact solutions in general relativityGeographysum-of-sinusoidsVDP::Technology: 500::Information and communication technology: 550::Telecommunication: 552Rice fadingElectronic engineeringaverage duration of fadesGeneral Earth and Planetary SciencesStatistical physicsComputer Science::Information Theoryfading channel simulatorsGeneral Environmental ScienceRayleigh fadingEnvelope (waves)Mobile radio channelProcedia Technology
researchProduct

Selected Topics in Mobile Radio Channel Modelling

2011

EngineeringFading distributionChannel state informationbusiness.industryElectrical engineeringElectronic engineeringFadingbusinessRayleigh fadingMobile radio channelMobile Radio Channels
researchProduct

Time dispersion characterization for UWB mobile radio channels between 3.1 and 10.6 GHz

2007

In this paper, a characterization of the UWB mobile radio channel time dispersion is presented. The results provided were obtained from a measurement campaign carried out in a typical indoor office scenario in the band from 3.1 to 10.6 GHz. Time dispersion metrics as delay spread, coherence bandwidth, delay interval and delay window, in both line-of-sight (LOS) and non-line-of-sight (NLOS) conditions are provided.

Mobile radioNon-line-of-sight propagationComputer scienceDispersion (optics)Electronic engineeringMicrowaveCoherence bandwidthMobile radio channelDelay spread2007 IEEE Antennas and Propagation Society International Symposium
researchProduct

Modeling and Simulation of Mobile Radio Channels

2012

Modeling and simulationCognitive radioArticle SubjectComputer scienceModeling and SimulationGeneral EngineeringElectronic engineeringlcsh:Electronic computers. Computer sciencelcsh:QA75.5-76.95Computer Science ApplicationsMobile radio channelModelling and Simulation in Engineering
researchProduct