Dies ist das erste Buch auf dem Markt, das eine detaillierte Beschreibung der Zuverlässigkeitsfunktionen von Satellitensystemen bietet! Diskutiert werden IP über Satellit, verschiedene einschlägige Simulationstools sowie die Modellierung von Datenverkehr in Satellitennetzen. Verschiedene Routing-Strategien werden hinsichtlich ihrer Leistungsmerkmale verglichen. Auch Aspekte der Sicherheit kommen nicht zu kurz.
Where access by terrestrial fibre is not commercially attractive, the use of satellites for the provision of services to remote and less developed regions is recognised as efficient and economical. The EC COST 253 Action was set up to study, define, model and simulate the inter-connection of local area networks through non-geostationary satellites in order to provide globally efficient interactive communication services. Service Efficient Network Interconnection via Satellite provides the results of research activities conducted within the COST 253 framework gathered from European satellite communications experts. Reviews source and traffic models important for the design of network control algorithms <p/> * Covers transmission aspects including modulation and coding schemes, Doppler frequency shift correction and interference modelling <p/> * Discusses different network issues including routing strategies taking into account traffic characteristics and geographic variation in traffic intensity, reliability issues, multicast over satellite, and recent development in security aspects of mobile networks and their applications in satellite networks <p/> * Discusses the technical challenges involved in the implementation of TCP/IP over satellite and the on-going development in mobile IP <p/> * Evaluates different simulation tools for the characterisation of satellite networks and presents the simulation results for networking performance
By offering a wealth of material relating to satellite communication systems technologies, Service Efficient Network Interconnection via Satellite will be of tremendous value to researchers, academics and those working within industry.
Inhaltsverzeichnis
Preface
A Note from the COST253 Chariman
Acronyms
Figures
Tables
Contributors
1. Introduction
Evolution of Satellite Communications
EU Initiatives in Satellite Communications
Operating Frequency
Technical Considerations
Objectives and Activities of COST253
Outline of Contents
2. Appropriate Traffic Generators for the Simulation of Services Supported by Non-GEO Constellation
Source Traffic Parameters and Descriptors
Quality of Service Parameters
ATM Service Categories
Statistical Behaviour of Traffic Sources
Influences of Traffic Characteristics
Source Models
Geographic Traffic Models
3. Transmission Schemes
Modulation Techniques
Coding Techniques
Synchronisation
Catching Co-Channel Interference
Chapter Summary and Perspectives
4. Networking
LAN Interconnection
Resource Control
Congestion Control
Multicast
Reliability
Security
Security Infrastructure
Conclusions
5. Evaluation Tools
An Overview of Network Simulators
LeoSim: A Simulator for Routing
GaliLEO: A Framework for Joint Expertise
CONSIM(TM) : A Complementary Tool for Reliability
AristoteLEO
SEESAWS: An Ambitious Concept
6. TCP/IP Over Satellite
Transmission Control Protocol
The Effects of Satellite Networks on TCP Performance
Simulation Analysis
Fixed -
Mobile Convergence
Further Research and Conclusions
Appendices
Index
