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<p>Acknowledgments ix</p> <p>Foreword xi<br /><i>Patrick GÉLARD</i></p> <p>List of Acronyms xiii</p> <p>Introduction xxiii</p> <p><b>Chapter 1 Satellite and Terrestrial Hybrid Networks 1</b></p> <p>1.1 Designing satellite and terrestrial hybrid networks 1</p> <p>1.2 Hybrid scenarios 2</p> <p>1.2.1 Network architecture: integration of hybrid networks 4</p> <p>1.2.2 Tight coupling integration: an integrated approach 5</p> <p>1.2.3 Gateway integration 7</p> <p>1.2.4 Loose coupling integration 8</p> <p>1.3 Case study: loose coupling integration 9</p> <p>1.3.1 Use case and user profile 9</p> <p>1.3.2 Proposal of a scenario 9</p> <p>1.3.3 Profile of mobile users 11</p> <p>1.4 Conclusion 12</p> <p><b>Chapter 2 Quality of Service on Next- Generation Terrestrial Networks 15</b></p> <p>2.1 IETF approach 16</p> <p>2.1.1 Network level 16</p> <p>2.1.2 Transport level 29</p> <p>2.1.3 Session and application levels 32</p> <p>2.1.4 QoS signaling 37</p> <p>2.2 ITU-NGN approach 45</p> <p>2.2.1 Principles 45</p> <p>2.2.2 Transport stratum 47</p> <p>2.2.3 Service stratum 49</p> <p>2.2.4 Management plan 50</p> <p>2.3 Conclusion 50</p> <p><b>Chapter 3 Quality of Service in Dvb-s/rcs Satellite Networks 53</b></p> <p>3.1 Bi-directional satellite access systems 54</p> <p>3.1.1 Overview 54</p> <p>3.2 The DVB-S standard and the IP support 59</p> <p>3.2.1 The DVB-S standard 60</p> <p>3.2.2 Access method 63</p> <p>3.2.3 IP encapsulation method over DVB-S 63</p> <p>3.3 The DVB-S2 standard 67</p> <p>3.3.1 Coding and modulations 67</p> <p>3.3.2 Encapsulation 69</p> <p>3.4 The DVB-RCS standard 70</p> <p>3.4.1 Access method: MF-TDMA 71</p> <p>3.4.2 Signaling in a DVB-RCS/S System 74</p> <p>3.4.3 Connections 78</p> <p>3.5 Dvb-rcs2 79</p> <p>3.5.1 Coding and modulation 79</p> <p>3.5.2 Access techniques 79</p> <p>3.5.3 Encapsulation 80</p> <p>3.5.4 QoS architecture and PEP 80</p> <p>3.6 QoS architecture in DVB-S/RCS satellite access networks 80</p> <p>3.6.1 The various stakeholders in the satellite network 81</p> <p>3.6.2 The SatLabs architectural model 82</p> <p>3.6.3 The BSM architectural model based on IP 89</p> <p>3.7 Conclusion 96</p> <p><b>Chapter 4. Integration of Satellites Into IMS Qos Architecture 97</b></p> <p>4.1 IMS architecture 97</p> <p>4.1.1 COPS and DIAMETER messages 99</p> <p>4.2 IMS QoS architecture 100</p> <p>4.2.1 IMS QoS in a GPRS: UMTS network 103</p> <p>4.2.2 IMS QoS in an asymmetric digital subscriber line (ADSL) network 106</p> <p>4.3 IMS QoS signaling 107</p> <p>4.3.1 Authorization of QoS resources 108</p> <p>4.3.2 Reservation of QoS resources with a local service policy 110</p> <p>4.3.3 Approval of commitments of authorized resources 110</p> <p>4.3.4 Deleting commitments of authorized resources 112</p> <p>4.3.5 Revocation of a QoS resource authorization 112</p> <p>4.3.6 Indication of a PDP context deletion 113</p> <p>4.3.7 Authorization for the modification of the PDP context 115</p> <p>4.4 Inclusion of IMS QoS in the satellite segment 116</p> <p>4.4.1 “System” hypothesis 116</p> <p>4.4.2 IMS satellite integration: transparent approach 117</p> <p>4.4.3 IMS satellite integration: integrated star approach 118</p> <p>4.4.4 IMS satellite integration: integrated mesh approach 119</p> <p>4.5 Toward a unified next-generation network (NGN) QoS architecture 120</p> <p>4.5.1 Transparent integration scenario 120</p> <p>4.5.2 Star integration scenario 125</p> <p>4.5.3 Mesh integration scenario 127</p> <p>4.6 SATSIX project 130</p> <p>4.7 Conclusion 132</p> <p><b>Chapter 5 Inter-system Mobility 135</b></p> <p>5.1 Introduction 135</p> <p>5.2 The taxonomy of mobility 136</p> <p>5.2.1 Personal mobility 136</p> <p>5.2.2 Session mobility 137</p> <p>5.2.3 Mobility of service 137</p> <p>5.2.4 Mobility of the terminal 137</p> <p>5.2.5 Network mobility 139</p> <p>5.2.6 Clarification for mobility terminology 139</p> <p>5.3 Protocols for mobility management 139</p> <p>5.3.1 Extension of DVB-RCS for mobility 140</p> <p>5.3.2 Management by the network layer: mobile IP 141</p> <p>5.3.3 Mobility management with session initiation protocols (SIPs) 156</p> <p>5.4 Implementation of mobility solutions in hybrid systems 159</p> <p>5.4.1 Specification of SIP mobility in a DVB-S2/RCS system 160</p> <p>5.4.2 Theoretical evaluations and recommendations 165</p> <p>5.5 SIP for mobility management and QoS for interactive applications 177</p> <p>5.6 Evaluation of mobility solutions in a simulated DVB-S2/RCS architecture 179</p> <p>5.6.1 Comparison of interruption times 180</p> <p>5.6.2 Common cases 180</p> <p>5.6.3 Specific cases 183</p> <p>5.6.4 Problems related to overheads 184</p> <p>5.7 Conclusion 185</p> <p><b>Chapter 6. the Transport Layer in Hybrid Networks 187</b></p> <p>6.1 Introduction 187</p> <p>6.2 Performance enhancing proxies 189</p> <p>6.2.1 Space communications protocol specifications 190</p> <p>6.2.2 I-pep 193</p> <p>6.2.3 Issues related to PEPs 196</p> <p>6.3 TCP evolutions 198</p> <p>6.3.1 TCP adaptations to the satellite environment 199</p> <p>6.3.2 Options and mechanisms for TCP improvements 200</p> <p>6.3.3 New TCP versions 202</p> <p>6.3.4 Characteristics of the satellite connection 204</p> <p>6.3.5 Impact on the transport layer 206</p> <p>6.3.6 Conclusion 207</p> <p>6.4 TCP performance in a geostationary network 208</p> <p>6.4.1 Measurement and analysis methodology 208</p> <p>6.4.2 The configuration of the system and measurements 208</p> <p>6.5 TCP in a hybrid context 215</p> <p>6.5.1 The impact of a hybrid network on the transport layer 215</p> <p>6.5.2 Control of the adaptation of streams to the new network 216</p> <p>6.5.3 TCP impacts for a break before make handover 217</p> <p>6.5.4 TCP impacts for a make before break handover 217</p> <p>6.5.5 The effect on TCP of the vertical handover with simultaneous variation of the bandwidth and delay 218</p> <p>6.5.6 Conclusion 220</p> <p>6.6 General conclusion 221</p> <p>Conclusion 223</p> <p>Bibliography 227</p> <p>Index 235</p>

<b>Pascal Berthou</b> is associate professor at the Toulouse University of Sciencea and a researcher at Laboratory for the Analysis and the Architecture of Systems of the French National Center for Scientific Research (LAAS-CNRS), Toulouse, France.

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