This is one of the first books to focus on the emerging HAPS technology that offers a cost effective and easily deployable alternative for terrestrial and satellite line-of-sight propagation paths needed for high capacity wireless services. It gives a thorough overview of the technology including HAPS based communications systems, antennas, propagation and channel modeling, HAPS networks, and finally the future applications. INDICE: Contents Preface 1 Introduction 1.1 WHAT IS A HAPS? 1.2 STRUCTURE OF THE BOOK REFERENCES 2 Overview on HAPS 2.1 HAPS SYSTEM CONCEPTS 2.2 RADIO REGULATIONS FOR HAPS 2.3 APPLICATIONS AND SERVICES 2.4 HAPS NETWORKS 2.5 TERRESTRIAL, SATELLITE AND STRATOSPHERIC COMMUNICATION SYSTEMS: A COMPARISON 2.6 SURVEY OF THE EVOLUTION AND STATE-OF-THE ART OF HAPS IN THE WORLD REFERENCES 3 Propagation and Channel Modelling 3.1 INTRODUCTION 3.2 AN OVERVIEW TO PROPAGATION PHENOMENA 3.3 CHANNEL MODELLING 3.4 FADING MITIGATION TECHNIQUES 3.5 CONCLUSIONS REFERENCES 4 Antennas for HAPS 4.1 INTRODUCTION 4.2 ANTENNA REQUIREMENTS 4.3 ANTENNA TYPES FOR HIGH-ALTITUDE PLATFORMS 4.4 ANTENNA DESIGN RECOMMENDATIONS AT OPERATING FREQUENCIES ALLOCATED TO HAPS 4.5 STEERING MECHANISMS 4.6 BEAMFORMING 4.7 CHALLENGES REFERENCES 5 Communication systems based on HAPS 5.1 COMPONENTS OF HAPS COMMUNICATION SYSTEMS 5.2 SPECTRUM ALLOCATION FOR HAPS 5.3 HAPS LINK BUDGET 5.4 CONCLUSIONS REFERENCES 6 HAPS networks 6.1 INTRODUCTION 6.2NETWORK TOPOLOGIES 6.3 NETWORK ARCHITECTURES FOR SERVICE CANDIDATES 6.4 INTERWORKING REQUIREMENTS 6.5 HAPS NETWORKS FOR OTHER APPLICATIONS 6.6 FREE-SPACE OPTICAL LINKS 6.7 RESOURCE MANAGEMENT 6.8 HAPS AS PART OF INTEGRATED COMMUNICATION NETWORKS REFERENCES 7 The future 7.1 INTRODUCTION 7.2 CHALLENGES AND OPPORTUNITIES FOR CIVIL UAS 7.3 APPLICATIONS FOR CIVIL UAS 7.4 REQUIREMENTS FOR THEFUTURE OF THE CIVIL UAS 7.5 TECHNOLOGICAL TRENDS 7.6 TECHNOLOGICAL CHALLENGESFOR HAPS APPLIED TO WIRELESS COMMUNICATIONS 7.7 CONCLUSIONS REFERENCES
- ISBN: 978-0-470-51061-2
- Editorial: John Wiley & Sons
- Encuadernacion: Cartoné
- Páginas: 256
- Fecha Publicación: 31/10/2008
- Nº Volúmenes: 1
- Idioma: Inglés