Downlink MIMO in LTE-Advanced: SU-MIMO vs. MU-MIMO

Single-usermulti-antennatechnologiesarewellupportedincurrentstandardspecificationslikeLTERelease8/9.Furtherdevelopmentofthespecification(LTE-Advanced)isexpectedtoconformtotherequirementsforIMT-Advancedsystems.OneofthekeyenablingfeaturesofLTE-AdvancedtomeetIMT-Advanceddownlinkperformancerequ