Preface | p. ix |
Acknowledgements | p. xi |
List of Figures | p. xiii |
List of Tables | p. xix |
List of Acronyms | p. xxi |
Introduction | p. 1 |
The need for a general framework for cross-layer design in wireless systems | p. 1 |
Measuring performance in cross-layer design | p. 3 |
The spectral efficiency | p. 3 |
The delay | p. 5 |
Considering multiple antennas | p. 6 |
Considering Orthogonal Frequency Division Multiple Access (OFDMA) | p. 7 |
Book structure | p. 8 |
References | p. 10 |
Different views of spectral efficiency | p. 13 |
The capacity | p. 15 |
Digital data modulation | p. 15 |
The bit error rate (BER) | p. 16 |
Channel coding | p. 17 |
The packet error rate (PER) | p. 18 |
Analytical approximation of PER curves | p. 20 |
The throughput | p. 21 |
Link adaptation | p. 24 |
Analytical approximation of throughput envelope | p. 26 |
Quality of service requirements | p. 27 |
The average spectral efficiency | p. 29 |
Summary | p. 31 |
References | p. 31 |
The cross-layer resource allocation problem | p. 35 |
Allocating resources: time, power, space and frequency | p. 36 |
Signal model for multi-user SIMO multiple access channel | p. 37 |
The successive interference cancellation (SIC) receiver | p. 39 |
Signal model for multi-user MISO broadcast channel | p. 40 |
The resource allocation policy definition | p. 42 |
The spectral efficiency region and the optimal resource allocation policy | p. 43 |
A particular case: the capacity region | p. 49 |
Summary | p. 52 |
Annex: Examples of signal processing techniques | p. 53 |
The bank of matched filters | p. 53 |
The zero forcing (ZF) beamformer | p. 53 |
The minimum mean square error (MMSE) beamformer | p. 54 |
References | p. 55 |
Cross-layer resource allocation in SISO systems | p. 57 |
Mud scheduling: the optimal policy | p. 58 |
Average power constraints | p. 60 |
Instantaneous power constraints | p. 61 |
Cross-layer approach to MUD scheduling | p. 64 |
The average spectral efficiency region of MUD scheduling | p. 64 |
An example of average spectral efficiency region in homogeneous networks | p. 66 |
An example of average spectral efficiency region in heterogeneous networks | p. 67 |
Total average throughput in networks with HMUD | p. 69 |
HMUD and feedback information | p. 75 |
Summary | p. 78 |
References | p. 79 |
Cross-layer resource allocation in SIMO systems | p. 81 |
Cross-layer resource allocation with a ZF beamformer | p. 83 |
The average throughput region of spatial multiplexing and scheduling | p. 86 |
The total average throughput of spatial multiplexing and scheduling | p. 90 |
Low complexity spatial multiplexing and scheduling policy | p. 94 |
A closed form approximation for the average throughput in Rayleigh fading channels | p. 96 |
Summary | p. 101 |
References | p. 103 |
Cross-layer resource allocation in MISO systems | p. 105 |
Cross-layer resource allocation with a ZF beamformer | p. 107 |
The optimal power allocation p*[subscript theta](H[subscript K]) with a ZF beamformer | p. 109 |
The optimal spatial multiplexing and scheduling set K*[subscript theta](H) with a ZF beamformer | p. 112 |
The average spectral efficiency region and the total average spectral efficiency | p. 112 |
Low complexity spatial multiplexing and scheduling policy | p. 116 |
A closed form approximation for the average throughput in Rayleigh fading channels | p. 118 |
Summary | p. 121 |
Annex: Water-filling algorithm with a ZF beamformer | p. 122 |
References | p. 123 |
Different views of delay in resource allocation for wireless systems | p. 125 |
The delay metrics | p. 126 |
The instantaneous delay | p. 127 |
Instantaneous delay variation | p. 127 |
Average delay | p. 128 |
Worst-case delay | p. 129 |
Sources of delay | p. 129 |
The access delay | p. 130 |
The queueing delay | p. 131 |
Access delay on resource allocation | p. 131 |
RR scheduling | p. 132 |
Spatial multiplexing and scheduling with CSI | p. 135 |
Proportional fair scheduling | p. 136 |
Frame division scheduling | p. 139 |
Queueing delay on resource allocation | p. 140 |
Queueing delay parameters | p. 141 |
The arrival process | p. 142 |
Service time distribution | p. 142 |
The available number of links | p. 143 |
Queue's maximum allowed length | p. 143 |
The total number of users in the system (Nt) | p. 144 |
The service policy | p. 144 |
Queueing delay and stability consideration | p. 145 |
Summary | p. 147 |
References | p. 148 |
Orthogonal frequency division multiplexing | p. 151 |
OFDM and OFDMA | p. 151 |
Basic signal model | p. 153 |
Resource allocation | p. 154 |
Mimo-Ofdma | p. 156 |
Summary | p. 159 |
References | p. 160 |
Index | p. 163 |
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