Acknowledgments |
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xvi | |
Forewords |
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xix | |
Preface |
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xxii | |
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xxvii | |
Acronyms |
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xxx | |
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1 | (14) |
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1.1 Mobile data explosion and capacity needs |
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1 | (2) |
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1.2 Capacity and coverage solutions |
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3 | (2) |
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1.2.1 Improving existing macrocell networks |
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4 | (1) |
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1.2.2 Network base station densification |
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4 | (1) |
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1.2.3 Indoor capacity and coverage |
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4 | (1) |
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1.2.4 Heterogeneous cellular networks |
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5 | (1) |
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1.3 Heterogeneous cellular network nodes |
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5 | (2) |
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6 | (1) |
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1.3.2 Micro base stations |
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6 | (1) |
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6 | (1) |
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1.3.4 Femtocell access points |
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7 | (1) |
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7 | (1) |
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1.4 3GPP LTE-Advanced heterogeneous cellular networks |
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7 | (1) |
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1.5 Heterogeneous cellular network challenges |
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8 | (7) |
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1.5.1 Optimal network evolution path |
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8 | (1) |
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9 | (1) |
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1.5.3 Mobility and handover |
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9 | (1) |
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1.5.4 Self-organizing networks |
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10 | (1) |
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1.5.5 Intercell interference |
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10 | (1) |
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1.5.6 Intersite coordination |
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11 | (1) |
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12 | (1) |
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12 | (1) |
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13 | (2) |
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2 Radio propagation modeling |
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15 | (42) |
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15 | (1) |
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2.2 Different types of propagation model |
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16 | (24) |
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17 | (2) |
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2.2.2 Deterministic models |
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19 | (14) |
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2.2.3 Semi-deterministic models |
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33 | (6) |
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39 | (1) |
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40 | (1) |
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2.4 Antenna radiation pattern |
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41 | (1) |
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42 | (1) |
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42 | (10) |
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2.6.1 Geometry-based stochastic channel models |
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44 | (2) |
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2.6.2 3GPP SCM and WINNER I model |
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46 | (1) |
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47 | (1) |
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2.6.4 COST 259/273/2100 MIMO channel models |
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48 | (3) |
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2.6.5 Perspectives of channel modeling |
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51 | (1) |
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2.7 Summary and conclusions |
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52 | (5) |
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52 | (5) |
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3 System-level simulation and evaluation models |
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57 | (30) |
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57 | (1) |
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3.2 System-level simulation |
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58 | (1) |
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3.3 Static versus dynamic system-level simulations |
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59 | (1) |
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3.3.1 Static snapshot-based approaches |
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59 | (1) |
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3.3.2 Dynamic event-driven approaches |
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60 | (1) |
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60 | (11) |
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60 | (2) |
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3.4.2 Shadow fading: auto- and cross-correlation |
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62 | (3) |
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3.4.3 Multi-path fading: International Telecommunication Union (ITU) and Typical Urban (TU) models |
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65 | (3) |
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68 | (2) |
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3.4.5 Signal quality: maximal ratio combining (MRC) and exponential effective SINR mapping (EESM) |
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70 | (1) |
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3.5 3GPP reference system deployments and evaluation assumptions |
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71 | (7) |
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3.5.1 Homogeneous deployments |
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72 | (1) |
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3.5.2 Heterogeneous deployments |
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73 | (5) |
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3.6 Placing of low-power nodes and users |
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78 | (4) |
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3.6.1 Macrocells overlaid with indoor or outdoor picocells or relays |
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78 | (2) |
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3.6.2 Macrocells overlaid with indoor femtocells |
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80 | (2) |
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82 | (1) |
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82 | (1) |
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83 | (1) |
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83 | (1) |
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83 | (1) |
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3.9 Summary and conclusions |
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84 | (3) |
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84 | (1) |
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85 | (2) |
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87 | (24) |
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87 | (1) |
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87 | (1) |
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4.3 Basics of the UMTS cellular architecture |
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88 | (4) |
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89 | (1) |
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89 | (1) |
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4.3.3 Radio protocol functions in UTRAN |
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90 | (2) |
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4.4 Basics of the LTE cellular architecture |
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92 | (3) |
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4.4.1 Evolved Packet Core (EPC) |
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92 | (1) |
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93 | (1) |
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4.4.3 Radio protocol functions in Evolved-UTRAN (E-UTRAN) |
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94 | (1) |
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4.5 LTE Release 8 mobility management to CSG cells |
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95 | (2) |
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4.5.1 Idle mode mobility to and from CSG cells |
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95 | (2) |
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4.5.2 Mobility to and from CSG cells in RRC_CONNECTED mode |
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97 | (1) |
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97 | (1) |
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4.6 LTE Release 9 mobility enhancements to CSG cells and introduction of HA cells |
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97 | (4) |
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99 | (1) |
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4.6.2 Access control, PCI confusion resolution and proximity indication |
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99 | (2) |
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4.7 LTE Release 10 and beyond: introduction of X2 interface for HeNBs |
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101 | (1) |
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4.8 Distinguishing features of UMTS access mechanisms |
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101 | (1) |
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4.9 Case study of access control in LTE |
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102 | (7) |
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4.9.1 Open access heterogeneous cellular network |
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103 | (3) |
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4.9.2 Closed access heterogeneous cellular network |
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106 | (3) |
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109 | (2) |
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110 | (1) |
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110 | (1) |
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5 Interference modeling and spectrum allocation in two-tier networks |
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111 | (34) |
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111 | (2) |
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5.2 Interference modeling |
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113 | (4) |
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117 | (4) |
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5.3.1 Two-tier network model |
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117 | (1) |
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5.3.2 Spectrum allocation |
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118 | (1) |
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119 | (1) |
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5.3.4 Signal-to-interference ratio |
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120 | (1) |
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5.4 Downlink success probability |
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121 | (3) |
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5.4.1 Success probabilities with closed access femtocells |
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121 | (1) |
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5.4.2 Success probability with open access femtocells |
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122 | (2) |
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5.5 Two-tier downlink throughput optimization |
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124 | (5) |
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5.5.1 Downlink throughput analysis |
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124 | (1) |
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5.5.2 Network throughput optimization |
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125 | (1) |
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5.5.3 Optimal joint allocation with closed access femtocells |
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126 | (1) |
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5.5.4 Optimal disjoint allocation with closed access femtocells |
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126 | (2) |
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5.5.5 Optimal joint allocation with open access femtocells |
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128 | (1) |
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5.5.6 Optimal disjoint allocation with open access femtocells |
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129 | (1) |
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129 | (5) |
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5.7 Conclusion and future direction |
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134 | (1) |
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134 | (11) |
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5.8.1 Derivation of fR(r) |
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134 | (1) |
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135 | (1) |
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136 | (2) |
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138 | (1) |
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139 | (1) |
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140 | (1) |
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140 | (5) |
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145 | (34) |
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145 | (1) |
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6.2 Management architecture |
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146 | (1) |
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147 | (4) |
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148 | (1) |
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149 | (2) |
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151 | (19) |
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6.4.1 Automatic neighbor relation |
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152 | (4) |
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6.4.2 Automatic cell identity management |
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156 | (2) |
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6.4.3 Random access optimization |
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158 | (3) |
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6.4.4 Mobility robustness optimization |
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161 | (5) |
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6.4.5 Mobility load balancing |
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166 | (1) |
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6.4.6 Transmission power tuning |
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167 | (2) |
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6.4.7 Coverage and capacity optimization |
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169 | (1) |
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170 | (1) |
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6.6 Performance monitoring |
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171 | (2) |
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6.6.1 Minimization of drive tests |
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171 | (2) |
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6.6.2 Heterogeneous cellular network monitoring |
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173 | (1) |
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6.7 Summary and conclusions |
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173 | (6) |
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174 | (5) |
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7 Dynamic interference management |
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179 | (38) |
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7.1 Excessive intercell interference |
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179 | (2) |
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7.1.1 Transmission power difference between nodes |
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180 | (1) |
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7.1.2 Low-power node range expansion |
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181 | (1) |
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7.1.3 Closed subscriber group access |
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181 | (1) |
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181 | (5) |
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7.2.1 Definition of range expansion |
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182 | (1) |
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7.2.2 Downlink/uplink coverage imbalance |
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183 | (1) |
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7.2.3 Behavior of range expansion |
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184 | (2) |
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7.3 Intercell interference coordination |
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186 | (1) |
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7.4 Frequency-domain intercell interference coordination |
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186 | (3) |
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7.4.1 Frequency-domain intercell interference coordination in LTE |
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187 | (1) |
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7.4.2 Carrier-based intercell interference coordination |
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187 | (2) |
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7.4.3 Uplink interferer identification |
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189 | (1) |
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7.5 Power-based intercell interference coordination |
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189 | (3) |
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7.5.1 Uplink power-based intercell interference coordination |
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190 | (1) |
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7.5.2 Downlink power-based intercell interference coordination |
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190 | (2) |
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7.6 Time-domain intercell interference coordination |
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192 | (7) |
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7.6.1 Almost blank subframes |
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194 | (2) |
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7.6.2 Almost blank subframes for range-expanded picocells |
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196 | (2) |
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7.6.3 Reduced-power subframes and UE interference cancellation |
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198 | (1) |
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7.7 Performance evaluations |
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199 | (13) |
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7.7.1 Power-based and time-domain intercell interference coordination |
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199 | (3) |
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7.7.2 Performance analysis for time-domain intercell interference coordination |
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202 | (2) |
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7.7.3 Coverage analysis for time-domain intercell interference coordination and range expansion |
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204 | (2) |
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7.7.4 Capacity analysis for time-domain intercell interference coordination and range expansion |
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206 | (3) |
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7.7.5 Reduced-power ABS and UE interference cancellation |
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209 | (3) |
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7.8 Summary and conclusions |
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212 | (5) |
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212 | (1) |
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213 | (4) |
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8 Uncoordinated femtocell deployments |
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217 | (28) |
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217 | (2) |
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219 | (1) |
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8.3 Femtocell deployment scenarios |
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220 | (2) |
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222 | (2) |
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224 | (1) |
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8.6 Synchronization and localization |
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225 | (2) |
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8.7 Interference mitigation in femtocell networks |
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227 | (14) |
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8.7.1 Carrier allocation strategies |
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227 | (4) |
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8.7.2 Power-based techniques |
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231 | (5) |
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8.7.3 Antenna-based techniques |
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236 | (2) |
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8.7.4 Load-balancing-based techniques |
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238 | (1) |
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8.7.5 Frequency-based techniques |
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239 | (2) |
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241 | (4) |
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241 | (1) |
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242 | (3) |
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9 Mobility and handover management |
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245 | (39) |
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245 | (1) |
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9.2 Mobility management in RRC-connected state |
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246 | (17) |
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9.2.1 Overview of the handover procedure in LTE systems |
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247 | (7) |
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9.2.2 Handover failures and ping-pongs |
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254 | (4) |
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9.2.3 Improved schemes for mobility management in RRC-connected state |
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258 | (5) |
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9.3 Mobility management in RRC-idle state |
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263 | (9) |
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9.3.1 Overview of cell selection/reselection procedure |
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263 | (3) |
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9.3.2 Improved schemes for mobility management in RRC-idle state |
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266 | (6) |
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9.4 Mobility management in heterogeneous cellular networks |
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272 | (9) |
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9.4.1 Range expansion, almost blank subframes, and HO performance |
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273 | (3) |
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9.4.2 HCN mobility performance with 3GPP Release-10 eICIC |
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276 | (3) |
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9.4.3 Mobility-based intercell interference coordination for HCNs |
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279 | (2) |
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281 | (3) |
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281 | (1) |
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281 | (3) |
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284 | (28) |
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285 | (8) |
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285 | (2) |
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10.1.2 Throughput comparison |
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287 | (2) |
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10.1.3 Link adaptation of DMF relay |
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289 | (4) |
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10.2 Relay architecture in LTE-Advanced |
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293 | (5) |
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10.2.1 Interface and architecture |
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293 | (2) |
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295 | (3) |
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10.3 Cooperative relaying |
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298 | (11) |
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298 | (1) |
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10.3.2 Cooperative EF relay |
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299 | (4) |
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10.3.3 Joint network-channel coding for user cooperation |
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303 | (6) |
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309 | (3) |
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310 | (1) |
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310 | (1) |
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310 | (2) |
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11 Network MIMO techniques |
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312 | (40) |
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312 | (1) |
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11.2 General principles of network MIMO |
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313 | (6) |
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11.2.1 Problems of single-cell processing |
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313 | (1) |
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11.2.2 Advantages of multi-cell processing |
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314 | (1) |
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315 | (3) |
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11.2.4 Categories of network MIMO |
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318 | (1) |
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11.3 Application scenarios of network MIMO in HCN |
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319 | (5) |
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11.3.1 Backhaul limit in HCN |
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321 | (1) |
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11.3.2 Clustering mechanism for HCNs |
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321 | (1) |
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322 | (2) |
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11.4 Distributed downlink coordinated beamforming for macrocell network |
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324 | (13) |
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11.4.1 System model and problem formulation |
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324 | (2) |
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11.4.2 Distributed multi-cell beamforming based on interference leakage |
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326 | (1) |
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11.4.3 Distributed multi-cell beamforming based on max-min SINR |
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326 | (7) |
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11.4.4 Analysis of distributed implementation |
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333 | (1) |
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11.4.5 Simulation results |
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334 | (3) |
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11.5 Downlink coordinated beamforming applications in HCN |
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337 | (9) |
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338 | (1) |
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11.5.2 Downlink multi-cell beamforming approaching Pareto optimality with max-min fairness |
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339 | (2) |
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11.5.3 Performance analysis |
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341 | (3) |
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11.5.4 Distributed implementation |
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344 | (1) |
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11.5.5 Simulation results |
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344 | (2) |
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11.6 The road ahead of network MIMO in HCN |
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346 | (2) |
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11.7 Summary and conclusions |
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348 | (4) |
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348 | (4) |
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352 | (31) |
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352 | (1) |
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12.2 Coding opportunities in heterogenous cellular networks |
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352 | (12) |
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12.2.1 An upper bound on coding gain without geometry consideration |
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354 | (2) |
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12.2.2 An upper bound on coding gain with geometry consideration |
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356 | (1) |
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12.2.3 Generalized butterfly network |
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357 | (1) |
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12.2.4 Necessary condition for network coding gain |
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358 | (2) |
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12.2.5 Supporting examples |
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360 | (4) |
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12.3 Efficiency and reliability |
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364 | (14) |
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12.3.1 Issues of naive interference cancellation |
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367 | (1) |
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12.3.2 WNC-based partial interference cancellation strategy |
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368 | (1) |
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12.3.3 Practical considerations |
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369 | (1) |
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12.3.4 Diversity-multiplexing tradeoff analysis |
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370 | (8) |
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12.4 Construction of distributed coding solutions |
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378 | (2) |
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12.5 Summary and conclusion |
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380 | (3) |
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381 | (2) |
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383 | (43) |
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383 | (2) |
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13.2 Cognitive radio techniques |
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385 | (24) |
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13.2.1 Spectrum awareness |
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386 | (9) |
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13.2.2 Spectrum selection |
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395 | (4) |
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399 | (5) |
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404 | (3) |
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13.2.5 Summary of cognitive radio techniques and cross-layer design |
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407 | (2) |
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13.3 Application scenarios for cognitive radio in heterogeneous cellular networks |
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409 | (6) |
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410 | (1) |
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410 | (1) |
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13.3.3 Cognitive ad hoc networks |
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410 | (1) |
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13.3.4 Capacity extension in cellular networks |
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411 | (1) |
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13.3.5 Direct UE-to-UE communication in cellular networks |
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411 | (1) |
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13.3.6 Coordination and cognitive X2 links |
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412 | (1) |
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13.3.7 Cognitive femtocells |
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412 | (3) |
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13.4 Standardization activities: the future of cognitive radio systems |
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415 | (2) |
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13.5 Summary and conclusions |
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417 | (9) |
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418 | (8) |
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14 Energy-efficient architectures and techniques |
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426 | (27) |
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426 | (3) |
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14.2 Green cellular projects and metrics |
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429 | (3) |
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14.2.1 Green cellular network projects |
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429 | (2) |
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14.2.2 A taxonomy of green metrics |
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431 | (1) |
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14.2.3 How green are cellular networks? |
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431 | (1) |
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14.3 Fundamental tradeoffs: capacity, energy, and cost |
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432 | (4) |
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432 | (1) |
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14.3.2 Fundamental energy saving limits |
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433 | (1) |
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14.3.3 Maximum spectral and energy efficiency |
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433 | (1) |
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14.3.4 Maximum cost efficiency |
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434 | (2) |
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14.4 Green cellular network architectures |
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436 | (7) |
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14.4.1 Homogeneous deployment |
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438 | (1) |
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14.4.2 Heterogeneous deployment |
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438 | (5) |
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14.5 Green cellular transmission techniques |
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443 | (2) |
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443 | (1) |
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14.5.2 Interference reduction |
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444 | (1) |
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445 | (1) |
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14.6 Integrated heterogeneous cellular networks |
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445 | (2) |
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14.6.1 Flexible heterogeneous cellular networks |
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445 | (1) |
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14.6.2 Self-organizing networks |
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446 | (1) |
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447 | (1) |
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14.7.1 Standardization of green cellular networks |
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447 | (1) |
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14.7.2 Pricing in green cellular networks |
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448 | (1) |
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14.7.3 New energy and materials |
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448 | (1) |
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448 | (5) |
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449 | (1) |
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449 | (4) |
Index |
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453 | |