1. Auflage - Oktober 2008
87,90 Euro
2008. 256 Seiten, Hardcover
ISBN-10: 0-470-51061-7
ISBN-13: 978-0-470-51061-2 - John Wiley & Sons

Preis inkl. Mehrwertsteuer zzgl. Versandkosten.





Probekapitel

Kurzbeschreibung
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.

Aus dem Inhalt
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

6.2 NETWORK 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 THE FUTURE OF THE CIVIL UAS

7.5 TECHNOLOGICAL TRENDS

7.6 TECHNOLOGICAL CHALLENGES FOR HAPS APPLIED TO WIRELESS COMMUNICATIONS

7.7 CONCLUSIONS

REFERENCES