FLOWS 1ST-2001-32125 Deliverable No:D14 5.12 Energy efficiency. 140 5.1.3 CO-JT with beneficial choice of demodulators.. 141 5.1.4 Performance study of CO-JT... 144 5.2 Enhanced CO-JT.......... 158 5.2.1 Dominant eigenvector vs.second strongest eigenvector. 158 5.2.2 Enhanced CO-JT with eigenvector selection algorithm.. 161 5.2.3 Performance evaluation. 165 6.CLASSIFICATION AND PERFORMANCE COMPARISON OF MIMO TECHNIQUES FOR OFDM SYSTEMS..... .170 6.1 OFDM Based Techniques. 170 6.1.1 Frequency Selective Radio Channels.... .170 6.1.2 Basic OFDM System.... 170 6.1.3 MIMO and OFDM. 173 6.1.4 Subcarrier specific Linear MIMO Encoding 176 6.1.5 Subcarrier specific Space-Time Coding 176 6.1.6 Space-Frequency Coding. 176 6 1 7 Coded MIMO-OEDM system 177 6.2 Classification of MIMO-OFDM techniques according to the available channel knowledge...179 6.3 MIMO-OFDM with full channel knowledge at the transmitter and receiver. 1R 631 Subcarrier specific SyD trar system without bit loading 180 6 32 OFDM-SVD with bit load 182 MIMO-OFDM with at ansmitter and full knowledge at the receiver ,182 6.4.1 Antenna selection. 183 6.4.2 A novel MIMO OFDM scheme with partial channel state information at the transmitter.....186 6.5 MIMO-OFDM with no channel knowedge at the transmiter and full channel knowledge at the eceive 6.5.1 Space-time-frequency block code 6.5.2 Spatial multiplexing(SM). 199 6.6 MIMO-OFDM techniques with no channel knowledge at the receiver 202 6.6.1 Differential space-time block code(DSTBC)... 202 6.7 Simulation results and comparison.... 204 7.MIMO TECHNIQUES FOR WCDMA. .207 7.1 MIMO WCDMA with multi-user detection. 207 7 11 Introduction 207 7 1 2 MIMO CDMA system model 208 7 13 Space-time Turbo codes 212 7.1.4 MMSE Multi-user-antenna receiver 212 7.1.5 Low Complexity Turbo Decoder. 214 7.1.6 Turbo PIC STTUC CDMA receiver. 216 7.1.7 Simulation results. 220 7.2 alisation for the WCDMA Downlink 297 7211 227 7.2.2 Receivers for WCDMA downlink 227 31December 2003 Page8 FLOWS IST-2001-32125 Deliverable No: D14 31st December 2003 Page 8 5.1.2 Energy efficiency..................................................................................................................140 5.1.3 CO-JT with beneficial choice of demodulators ....................................................................141 5.1.4 Performance study of CO-JT ...............................................................................................144 5.2 Enhanced CO-JT....................................................................................................................158 5.2.1 Dominant eigenvector vs. second strongest eigenvector ...................................................158 5.2.2 Enhanced CO-JT with eigenvector selection algorithm.......................................................161 5.2.3 Performance evaluation .......................................................................................................165 6. CLASSIFICATION AND PERFORMANCE COMPARISON OF MIMO TECHNIQUES FOR OFDM SYSTEMS................................................................................................. 170 6.1 OFDM Based Techniques ......................................................................................................170 6.1.1 Frequency Selective Radio Channels..................................................................................170 6.1.2 Basic OFDM System............................................................................................................170 6.1.3 MIMO and OFDM.................................................................................................................173 6.1.4 Subcarrier specific Linear MIMO Encoding .........................................................................176 6.1.5 Subcarrier specific Space-Time Coding ..............................................................................176 6.1.6 Space-Frequency Coding ....................................................................................................176 6.1.7 Coded MIMO-OFDM system ...............................................................................................177 6.2 Classification of MIMO-OFDM techniques according to the available channel knowledge...179 6.3 MIMO-OFDM with full channel knowledge at the transmitter and receiver............................180 6.3.1 Subcarrier specific SVD transmission system without bit loading .......................................180 6.3.2 OFDM-SVD transmission system with bit loading ...............................................................182 6.4 MIMO-OFDM with partial channel knowledge at the transmitter and full knowledge at the receiver ...................................................................................................................................182 6.4.1 Antenna selection.................................................................................................................183 6.4.2 A novel MIMO OFDM scheme with partial channel state information at the transmitter.....186 6.5 MIMO-OFDM with no channel knowledge at the transmitter and full channel knowledge at the receiver ...................................................................................................................................197 6.5.1 Space-time-frequency block code........................................................................................197 6.5.2 Spatial multiplexing(SM) ......................................................................................................199 6.6 MIMO-OFDM techniques with no channel knowledge at the receiver ...................................202 6.6.1 Differential space-time block code (DSTBC) .......................................................................202 6.7 Simulation results and comparison.........................................................................................204 7. MIMO TECHNIQUES FOR WCDMA ............................................................................ 207 7.1 MIMO WCDMA with multi-user detection...............................................................................207 7.1.1 Introduction...........................................................................................................................207 7.1.2 MIMO CDMA system model.................................................................................................208 7.1.3 Space-time Turbo codes......................................................................................................212 7.1.4 MMSE Multi-user-antenna receiver .....................................................................................212 7.1.5 Low Complexity Turbo Decoder...........................................................................................214 7.1.6 Turbo PIC STTuC CDMA receiver.......................................................................................216 7.1.7 Simulation results.................................................................................................................220 7.2 Chip Equalisation for the WCDMA Downlink..........................................................................227 7.2.1 Introduction...........................................................................................................................227 7.2.2 Receivers for WCDMA downlink..........................................................................................227