InhaltsangabeForeword. Preface. 1: Introduction to Global Mobile Satellite Systems; P.A. Swan, C.L. Devieux Jr. 1.1. Introduction. 1.2. Generations of GMSS. 1.3. GMSS Categories. 1.4. GMSS Infrastructure. 1.5. Book Organization. 1.6. The Challenge. References. 2: GMSS Architectural Comparisons; P.A. Swan. 2.1. Introduction. 2.2. Architectural Design Process. 2.3. GMSS Architectural Steps. 2.4. Summary. References. 3: Market Demand Considerations; C.L. Devieux Jr., G. Besenyei. 3.1. Introduction. 3.2. Historical Market Demand for Various Services and Consumer Products. 3.3. Global Mobile Satellite Systems. 3.4. Comments. References. 4: Regulatory and Spectrum Considerations; D. Jansky, R.D. Kubik. 4.1. Satellite Frequency Allocations. 4.2. Regulatory Considerations. 4.3. Mobile Satellite Service Regulation. 4.4. Summsry. Acknowledgement. References. 5: Orbital Trades; P.A. Swan, R.A. Peters. 5.1. Introduction. 5.2. Arguments for Non-GSO Orbits. 5.3. Constellation Design. 5.4. Comparison of Orbits. 5.5. Trends in Orbits. References. 6: Propagation Considerations; R.L. Turcotte. 6.1. Introduction. 6.2. Satellite Geometry and Received Signal Components. 6.3. Probability Distributions for Fading Models. 6.4. Channel Dynamics. 6.5. The Probability Distribution Based Land Mobile Satellite Channel Mode. 6.6. Summary. References. 7: Payload Trades, Antennas and Communications; R.A. Peters. 7.1. Introduction. 7.2. Basic Features of a Payload. 7.3. Antennas. 7.4. Link Budgets. 7.5. Polarization and Frequency Reuse. 7.6. Access Techniques: FDMA, TDMA, CDMA. 7.7. Coding: Trading Bandwidth for Power. 7.8. Space High-Power Amplifiers. 7.9. Transparent vs. Regenerative Payloads. 7.10. Inter-Satellite Links. 7.11. The Satellite Bus. 7.12. Space Segments Technology Trends. References. 8: GMSS Summary; P.A. Swan, C.L. Devieux Jr. 8.1. Achievements. 8.2. Architectural Approach. 8.3. Eventual Success. 8.4. The Future of GMSS. 8.5. The Customer. Index.