Curso planificacion

VSAT Networks
Second Edition

G´ rard Maral e
Ecole Nationale Sup´rieure des T´l´communications, e ee Site de Toulouse France

VSAT Networks

VSAT Networks
Second Edition

G´ rard Maral e
Ecole Nationale Sup´rieure des T´l´communications, e ee Site de Toulouse France

Copyright  1995 & 2003

John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ,England Telephone (+44) 1243 779777

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Contents
Preface Acronyms and Abbreviations Notation 1 Introduction 1.1 VSAT network definition 1.2 VSAT network configurations 1.3 User terminal connectivity 1.4 VSAT network applications and types of traffic 1.4.1 Civilian VSAT networks 1.4.2 MilitaryVSAT networks 1.5 VSAT networks: involved parties 1.6 VSAT network options 1.6.1 Star or mesh? 1.6.2 Data/voice/video 1.6.3 Fixed/demand assignment 1.6.4 Frequency bands 1.6.5 Hub options 1.7 VSAT network earth stations 1.7.1 VSAT station 1.7.2 Hub station 1.8 Economic aspects 1.9 Regulatory aspects 1.9.1 Licensing 1.9.2 Access to the space segment 1.9.3 Local regulations 1.10 Conclusions 1.10.1Advantages 1.10.2 Drawbacks 2 Use of satellites for VSAT networks 2.1 Introduction ix xiii xvii 1 1 5 9 11 11 15 15 17 17 21 22 24 29 30 30 35 39 41 42 43 43 44 44 45 47 48

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CONTENTS

2.1.1 The relay function 2.1.2 Transparent and regenerative payload 2.1.3 Coverage 2.1.4 Impact of coverage on satellite relay performance 2.1.5 Frequency reuse 2.2 Orbits 2.2.1 Newton’s universal law of...