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DiversityCombiningTechniquesDiversityCombiningTechniquesWhentherequiredsignalisacombinationofseveralplanewaves(i.e,multipath),thetotalsignalamplitudemayexperiencedeepfades(i.e,Rayleighfading),overtimeorspace.Themajorproblemistocombatthesedeepfades,whichresultinsystemoutage.MostpopularandefficienttechniquefordoingsoistousesomeformofdiversitycombiningDiversity:multiplecopiesoftherequiredsignalareavailable,whichexperienceindependentfading(orclosetothat)Typesofdiversity.3/11/2003Lecture17:ELG7178W:SmartAntennasS.Loyka,Winter20031TypesofDiversitySpacediversity.AntennasareseparatedinspaceAnglediversity.MultiplecopiesoftherequiredsignalhavedifferentAOA’sFrequencydiversity.Multiplecopiesaretransmi……