OFDM-Based Broadband Wireless Networks: Design and Optimization

Index

802.11, 201

MAC, 108

802.16, 222

access point (AP), 204

Alamouti code, 87

antenna array, 74

broadband model, 75

narrow-band model, 74

array manifold, 75

beamforming, 76

broadband, 80

coherent combining, 76

MMSE, 77

practical issues, 80

SINR gain, 78

transmit, 78

zero-forcing, 77

capex, 244

carrier offset, 35

data model, 36

MUSIC estimator, 39

non-pilot-based estimation, 38

pilot-based estimation, 37

recusive least-squares, 40

channel estimation, 42

1D MMSE, 46

2D MMSE, 44

2D pilots, 42

802.16e, 44

fast implementation, 48

minimum spacing, 43

reduced complexity, 46

channel fading

delay power profile, 20

envelope, 16

fast, 19

flat, 17

frequency correlation function, 20

frequency dispersive, 18

frequency selective, 17

linear time-variant, 19

time correlation function, 20

time dispersive, 17

time selective, 19

channel interpolation, 47

coherence bandwidth, 20

coherence time, 20

cross-layer design, 6, 147

CSMA/CA, 108

distributed coordination function, 108

domain of a function, 126

Doppler power spectrum, 20

Doppler spread, 20

DVB-T, 2

2K and 8K modes, 30

single-frequency network (SFN), 30

dynamic channel allocation, 175

centralized, 178

distributed, 178

FCA, 176

GSM, 177

OFDMA, 179

ergodic capacity, 163

FDM, 23

frequency reuse, 175

guard interval, 22

cyclic prefix, 23

zero-padding, 23

handoff, 242

HDTV, 2

hybrid ARQ, 6, 148

I/Q imbalance, 49

data model, 51

digital compensator, 53

estimation, 54

frequency-dependent, 54

NLS estimator, 56

pilot design, 55

test results, 58

IEEE 802.11, ...