802.11axisthenextfast-approachingInstituteofElectricalandElectronicsEngineers(IEEE)standardthataddressestoday’sbiggestWi-Fichallenges:highdensityandperformance.Itaddressesthosechallengesbyincreasingcapacitybyuptofourtimesandimprovingspectralefciencytobeneftboth2.4gigahertz(GHz)and5GHzb