Mobile satellite communications principles and trends

✍ Scribed by Richharia, Madhavendra

• Publisher: John Wiley & Sons
• Year: 2011
• Tongue: English
• Leaves: 753
• Edition: Second edition
• Category: Library

✦ Synopsis

Demand for Mobile Satellite Service (MSS) is on the increase, with a huge surge of interest in mobile communications in recent years and high-paced advancements in the supporting system architectures, devices and applications. This thoroughly revised and updated book provides a comprehensive guide to the MSS technologies and emerging trends. It takes a system level approach, giving in-depth treatment of technical and business related issues. The author, a leading professional in the area, draws on his extensive experience in industry and research, to provide the reader with a sound and informed understanding of the technology. Mobile Satellite Communications includes introductory material for the reader new to the field, in addition to exploring prevalent system concepts, architecture, practices and trends for the more experienced. An in-depth review of scientific principles merged with business models and regulatory considerations presents a balanced perspective of commercial mobile satellite systems. This book will be of interest to practicing engineers in mobile satellite communications and mobile broadcasting, research and development professionals working in these areas, mobile satellite service providers and operators. Academics and students studying satellite systems/technology, specialists in other classes of satellite systems, technical and marketing managers, strategists and planners of telecommunication systems: individuals interested in mobile communications, satellite and telecommunications/broadcasting technology will also find this book insightful. Key Features: * Comprehensive treatment of mobile satellite communications topics, including radio link aspects, satellite constellations, architectural and operational aspects, as well as business planning models, MSS radio interface standards, spectrum forecast methodologies and system examples. * Addresses related themes such as mobile broadcasting, mobile VSATs, search and rescue, and navigation systems. * Introduces emerging technologies such as mobile broadband, television broadcasting to handheld units, advanced capacity enhancement techniques, hybrid system architecture concepts, including a rich sample of research topics such as multiple input multiple output, satellite-based ad-hoc networks, and highlights initiatives in the use of Q/V frequency bands. * Includes revision questions at the end of each chapter. * An accompanying website for interaction (www.satellitesandyou.com)

✦ Table of Contents

Content: Cover
Title Page
Copyright
Contents
Preface
About the Author
Acknowledgements
Chapter 1 Introduction
1.1 Scope and Organization
1.2 Evolution of Mobile Telecommunications
1.2.1 Terrestrial Systems
1.2.2 Satellite Systems
1.3 Satellite System Architecture
1.3.1 Radio Frequency Environment
1.3.2 Orbit
1.3.3 Tolerable Delay in Data Delivery
1.3.4 Handover
1.3.5 Mobility Management
1.3.6 Physical Environment
1.3.7 Satellite Access
1.3.8 Spectrum Management
1.3.9 Radio Link Reliability
1.4 Business Plan
1.5 Regulatory Considerations
1.6 Operational Considerations. 1.7 Mobile Systems-A Comparison1.8 Example Applications
1.9 Practical Limitations
1.10 Related Satellite Systems
1.10.1 M-VSAT Systems
1.10.2 Satellite Navigation Systems
1.10.3 Direct Broadcasts to Individuals and Mobiles
1.11 Trends
1.11.1 General
1.11.2 Market
1.11.3 System Architecture
1.11.4 Spectrum
1.11.5 Technology
Revision
References
Chapter 2 Satellite Constellations
2.1 Introduction
2.2 Satellite Orbits
2.2.1 Orbital Mechanics Basics
2.2.2 Satellite Coverage
2.2.3 Space Environment
2.2.4 Eclipse on Satellites
2.2.5 The Sun's Interference
2.2.6 Doppler Effect. 2.2.7 Orbital Debris2.2.8 Summary of Orbital Characteristics
2.3 Satellite Constellations
2.3.1 Considerations in Constellation Design
2.3.2 Polar Constellations
2.3.3 Inclined Orbit Constellations
2.3.4 Hybrid Constellations
2.3.5 Regional Coverage
2.3.6 Constellations for Non-Real-Time Systems
2.3.7 Use of Spot Beams
2.3.8 Availability Considerations for Non-Geostationary Satellites
Revision
References
Chapter 3 Radio Link
3.1 Introduction
3.2 Spectrum Issues
3.2.1 Spectrum Sharing Methods
3.2.2 Spectrum Forecast Methodology
3.3 Propagation Characteristics. 3.3.1 General Propagation Characteristics3.3.2 Land Mobile Channel
3.3.3 Maritime Channel
3.3.4 Aeronautical Channel
3.3.5 System Implications
3.4 Radio Link Analysis
Revision
References
Chapter 4 Modulation, Coding and Multiple Access
4.1 Introduction
4.2 Modulation
4.2.1 MSS Requirements
4.2.2 Preferences
4.2.3 PSK Schemes
4.2.4 Performance Comparison of Conventional Digital Modulation Schemes
4.2.5 Coded Orthogonal Frequency Division Multiplexing (COFDM) Modulation Systems
4.2.6 Spread Spectrum Modulation
4.3 Coding
4.3.1 Trellis-Coded Modulation (TCM). 4.3.2 Modulation and Coding Trends and Issues4.3.3 Automatic Repeat Request
4.4 Multiple Access Schemes
4.4.1 Comparison of Multiple Access Schemes
4.4.2 Comparison of Spectral and Power Efficiency
Revision
References
Chapter 5 Fixed Earth Stations and User Terminals
5.1 Introduction
5.2 Gateways
5.3 User Terminals
5.3.1 Antennas
5.3.2 Hand-Held UT
5.3.3 Mobile Terminals
5.4 Environmental Issues
5.4.1 Biological Effects
Revision
References
Chapter 6 Spacecraft
6.1 Introduction
6.2 Satellites for MSS
6.2.1 Transponders
6.2.2 Antenna Systems. 6.2.3 Effect of Orbital Characteristics on Spacecraft Design.