Channel Prediction for Adaptive Modulation in Wireless Communications

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dc.contributor.authorChan, Raymonden
dc.contributor.committeechairBuehrer, R. Michaelen
dc.contributor.committeememberWoerner, Brain D.en
dc.contributor.committeememberPratt, Timothy J.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2014-03-14T20:41:48Zen
dc.date.adate2003-08-06en
dc.date.available2014-03-14T20:41:48Zen
dc.date.issued2003-07-15en
dc.date.rdate2003-08-06en
dc.date.sdate2003-07-23en
dc.description.abstractThis thesis examines the benefits of using adaptive modulation and coding in terms of spectral efficiency and probability of bit error. Specifically, we examine the performance enhancement made possible by using linear prediction along with channel estimation in conjunction with adaptive modulation. We begin this manuscript with basic fundamentals of our study, followed by a detailed view of simulations, their results, and our conclusions from them. The study includes simulations in slow and moderately fast flat fading Rayleigh channels. We present our findings regarding the advantages of using predictive measures to foresee the state of the channel and make adjustments to transmissions accordingly. In addition to finding the general advantages of channel prediction in adaptive modulation, we explore various ways to adjust the prediction algorithm when we are faced with high Doppler rates and fast fading. By the end of this work, we should have a better understanding of when channel prediction is most valuable to adaptive modulation and when it is weakest, and how we can alleviate the problems that prediction will have in harsh environments.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-07232003-144922en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-07232003-144922/en
dc.identifier.urihttp://hdl.handle.net/10919/34118en
dc.publisherVirginia Techen
dc.relation.haspartRay_Thesis_5.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectChannel Predictionen
dc.subjectPilot Symbol Assisted Modulationen
dc.subjectRayleigh Fadingen
dc.subjectForward Error Correctionen
dc.subjectAdaptive Modulationen
dc.subjectChannel Estimationen
dc.subjectLinear Predictionen
dc.titleChannel Prediction for Adaptive Modulation in Wireless Communicationsen
dc.typeThesisen
thesis.degree.disciplineElectrical and Computer Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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