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| List of Figures | |
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| List of Tables | |
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| Preface | |
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| Contributing Authors | |
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| The Role of Satellite Networks in the 21st Century | |
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| Introduction | |
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| Internet over Satellite Architecture | |
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| The Roles of Satellite Network in the Internet | |
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| The Role of Satellite in the Satellite Network | |
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| Common Applications | |
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| Visions for the Future | |
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| Commercial Market | |
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| The DARPA NGI Vision | |
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| Challenges | |
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| Satellite Constellation Networks | |
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| Introduction | |
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| Benefits of Going to LEO | |
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| Describing the Systems | |
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| Geometry, Topology and Delay | |
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| Delay | |
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| Handover | |
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| Networking Design | |
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| Simulators | |
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| Summary | |
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| Medium Access Control Protocols for Satellite Communications | |
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| Introduction | |
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| Polling Based Access Protocols | |
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| Fixed Assignment Multiple Access (FAMA) Protocols | |
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| Frequency Division Multiple Access (FDMA) | |
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| Time Division Multiple Access (TDMA) | |
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| Code Division Multiple Access (CDMA) | |
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| Random Access Protocols | |
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| Asynchronous Random Access Protocols | |
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| Aloha | |
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| Selective-Reject Aloha (SREJ-Aloha) | |
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| Synchronous Random Access Protocols | |
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| Carrier Sense Multiple Access (CSMA) | |
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| Demand Assignment Multiple Access (DAMA) Protocols | |
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| Demand Assignment Based on FDMA | |
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| Making Reservations by Contention Based Access | |
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| Reservation Aloha (R-Aloha) | |
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| Priority-Oriented Demand Assignment (PODA) | |
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| Split-Channel Reservation Multiple Access (SRMA) | |
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| The Time-of-Arrival Collision Resolution Algorithm (CRA) | |
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| Packet-Demand Assignment Multiple Access (PDAMA) | |
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| Hybrid Protocols | |
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| Round-Robin Reservations (RRR) | |
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| Interleaved Frame Flush-Out (IFFO) | |
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| Split-Channel Reservation Upon Collision (SRUC) | |
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| Announced Retransmission Random Access (ARRA) | |
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| Scheduled-Retransmission Multiple Access (SRMA) | |
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| Response Initiated Multiple Access (RIMA) | |
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| Combined Free/Demand Assignment Multiple Access | |
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| Fixed Boundary Integrated Access Scheme (FBIA) | |
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| Combined Random/Reservation Multiple Access (CRRMA) | |
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| Conclusions and Summary | |
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| Direct Broadcast Satellites and Asymmetric Routing | |
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| Introduction | |
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| Problems with Dynamic Asymmetric Routing | |
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| Unicast | |
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| Multicast | |
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| Tunneling: A Practical Solution | |
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| Demonstration of Tunneling Approach | |
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| RFC 3077: The IETF Standard | |
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| Topology and Requirements | |
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| Tunneling Mechanism Details | |
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| Dynamic Tunnel Configuration | |
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| Tunneling Protocol | |
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| Current Status | |
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| Limitations and Long-Term Solutions | |
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| Using Satellite Links in the Delivery of Terrestrial Multicast Traffic | |
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| Introduction | |
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| Overview of Multicast Deployment | |
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| Satellite Delivery of Multicast | |
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| Integrating Satellite and Terrestrial Networks | |
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| Using Satellite Paths for Multicast Sessions | |
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| Motivation and Metrics | |
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| Methodology | |
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| Results | |
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| When to Use Satellites? | |
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| TCP Performance over Satellite Channels | |
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| Introduction | |
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| Transmission Control Protocol (TCP) Overview | |
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| Basic TCP Operation | |
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| Connection Establishment and Release | |
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| Basic Loss Recovery and Congestion Avoidance | |
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| Enhanced Loss Recovery and Congestion Avoidance | |
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| TCP Performance Problems over Satellite Links | |
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| Enhancing TCP Performance using Standard Mechanisms | |
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| Window scale | |
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| Path MTU discovery | |
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| Error correction | |
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| Further loss recovery enhancements | |
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| Research Issues | |
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| Connection startup | |
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| Shared TCP state and TCP pacing | |
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| Link asymmetry | |
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| Experimental loss recovery techniques | |
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| Implementation details | |
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| TCP fairness | |
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| Using multiple data connections | |
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| Header compression | |
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| TCP Performance Enhancement Proxy | |
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| Additional protocols | |
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| Summary | |
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| TCP Performance Enhancement Proxy | |
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| Introduction | |
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| The Motivation | |
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| The Slow-Start Problem | |
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| The Window Size Problem | |
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| The Practical Solution | |
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| Basic Architecture | |
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| Example: Deployment in HNS DirecPC | |
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| Alternative Architecture and Mechanisms | |
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| The Big Argument | |
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| The End-to-end Reliability Issue | |
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| The Fate Sharing Issue | |
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| The "Show Stopper"? | |
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| Conflicts between IPsec and TCPPEP | |
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| The End-to-end Security Issue | |
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| Researches on Resolving the Conflicts with IPsec | |
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| Conclusion | |
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| Performance Evaluation of TCP splitting over Satellite | |
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| Introduction | |
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| Model-based Analysis | |
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| Network Model | |
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| Lossless Links | |
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| Delay Models | |
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| Links with Random Losses | |
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| The Server-Proxy Link is lossless | |
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| Random Losses on Both Links | |
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| Discussion | |
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| Initial Window Size | |
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| Slow or Congested Proxy | |
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| File Size | |
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| Connection With Asymmetric Segments | |
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| The Experiment System | |
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| Measurement-based Analysis | |
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| Effect of File Size and Caching | |
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| Effect of congestion and packet losses | |
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| Effect of embedded objects and persistent connection | |
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| Implications on System Design | |
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| Conclusion | |
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| Scheduling Data Broadcast | |
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| Introduction | |
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| The Basic Model | |
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| Persistent User Model | |
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| Impatient User Model | |
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| Theoretical Results | |
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| On-line Scheduling Algorithm | |
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| Performance Evaluation | |
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| Validation of algorithm | |
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| Persistent user case | |
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| Impatient user case | |
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| Conclusions | |
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| Deriving the Mean Access Time and the Variance of Access Time | |
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| Minimizing the Variance of Access Time | |
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| Deriving the Service Ratio | |
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| Maximizing the service ratio | |
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| Deriving The Mean Tuning Time | |
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| Information Dissemination Applications | |
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| Introduction | |
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| IIDS architecture | |
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| Mobile User Profiling | |
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| Dynamic User Profile Clustering and Aggregation | |
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| Incremental Clustering Framework | |
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| Adaptive Re-clustering | |
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| Evaluation | |
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| Data Dissemination techniques | |
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| Predictive Dissemination and Caching | |
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| Bandwidth-Aware Filtering | |
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| Reliable Multicast-based Dissemination | |
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| Implementation and Demonstration | |
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| Conclusions | |
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| Index | |