Multi-Carrier and Spread Spectrum Systems: From OFDM and MC ...

354 IndexChannel state information (CSI) 190,207Channel transfer function 16–17, 25Check nodes 184Chips 38, 55Clock error 143Code division multiple access (CDMA)5–6, 36–41, 106Code division multiplexing (CDM)106, 186–187Coding (FEC) for packet transmission174CODIT 45Coherence bandwidth 26Coherence time 27Combined equalization 75–76Common phase error (CPE) correction196–197Complexity of FFT 134Concatenated coding 175–178Constellation 187–189Convergence sub-layer 244Convolutional coding (FEC) 175–180COST channel models 20–21Crest factor 60Cyclic delay diversity (CDD) 227, 311Cyclic extension 31Decision directed channel estimation168–169Delay diversity 308–309, 314Delay power density spectrum 17Delay spread 17–18Demapping 189–190Detection techniques 64–71Multi-user detection 67–71Single-user detection 64–67DFT-spread OFDM 116–118, 227–228Digital AMPS (D-AMPS) 3Digital audio broadcasting (DAB) 8,35, 216Digital signal processor (DSP) 334Digital-to-analog (D/A) conversion135–136Digital video broadcasting (DVB-T) 8,35, 216, 288Direct current (DC) sub-carrier134–135Direct sequences CDMA (DS-CDMA)38–42Receiver 40–41Transmitter 40Discontinuous Doppler diversity 313Discrete Fourier transform (DFT)31–34, 134Distributed DFT-spread OFDM116–118Diversity 26–28, 301Diversity in multi-carrier transmission308–320Frequency diversity 26, 301Receive diversity 313–314Time diversity 27, 301Transmit diversity 308–313Doppler diversity 312–313Doppler frequency 17–18Doppler power density spectrum 18Doppler spread 16, 18DVB return channel (DVB-RCT)287–297Channel characteristics 290FEC coding and modulation294–295Frame structure 292–294Link budget 296–297Network topology 288–290Equal gain combining (EGC) 65–66Equal gain transmission (EGT) 74, 326Equalization 64–67, 72–76, 189–190Euclidean distance 67EV-DO 4, 42–44Fast Fourier transform (FFT) 31–32,133–134Complexity 134Field programmable gate array (FPGA)334Filter design 159–160Adaptive 159Non-adaptive 160Flexibility with MC-CDMA 81–84