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1、MIMOMultiple Input Multiple OutputEng.Ahmed Mohamed GomaaContents1-Introduction2-Capacity of Conventional Multiple Antenna Systems .3-MIMO Channel Model.4-MIMO Signaling.5-MIMO Receiver Architectures. 6-MIMO-OFDM.1) INTRODUCTIONWHY MIMO?1-1)WHAT IS MIMO?1-2) Wireless Channels Limitations nFading.nIS
2、I.nCCI.nNoise.1-3) MIMO Benefits Higher capacity (bits/s/Hz) Better transmission quality Increased coverage Improved user position estimation MIMO Performance Depends onnArray Gain.nInterference Reduction.nSpatial multiplexing gain. nDiversity Gain.2) Capacity of Conventional Multiple Antenna System
3、s:nSISOnSIMOnMISOnMIMO2-1) SISOTransmitterReceiver2-2) SIMOTransmitterReceiver2-3) MISOTransmitterReceiver2-4) MIMOTransmitterReceiverCOMPARISONSISOSIMOMISOMIMOMIMO Separated Channels3) MIMO CHANNEL MODEL: 4) MIMO Signaling4-1) Space Time Diversity CodingnWhat is Space Time Diversity CodingnWhy Spac
4、e Time Diversity Coding4-1-1) Alamouti Scheme 4-1-2) Delay Diversity: 4-2) Spatial Multiplexing 4-2-1) Horizontal Encoding 4-2-2) Vertical Encoding 5) MIMO Receiver Architectures n5-1) Receivers for SpaceTime Diversity Codingn5-2) Receivers for Spatial MultiplexingSymbol Error Rate versus SNR6) MIMO-OFDMTRANSMITTERnReceiverTransmitter With 8-Antenna ElementsTransmitter With 16-Antenna Elements
