Service Efficient Network Interconnection Via Satellite: Eu Cost Action 253

ISBN-13: 9780471486695 / Angielski / Twarda / 2002 / 272 str.

Yim Fun Hu; Gerard Maral; Erina Ferro

Opis

A Local Area Network (LAN) is a network usually within a single office or building that links desktop computers with each other and with peripherals such as servers and printers. The interconnect is the electrical and functional association of two different services, often provided by different suppliers, and it is from LAN inter-connection that telecoms operators seek to profit. The application of LAN interconnection via satellite can be used to complement and extend existing terrestrial public access networks through interconnection of clusters of broadband islands (such as LANs and MANs) in remote regions, where terrestrial lines are expensive to install and operate. Examples include:
* Hospitals/clinics in remote and rural areas can be connected to the central hospitals in a tele-medicine environment
* Remote offices can be connected to the central office to facilitate tele-working
* University/colleges can be inter-connected to provide tele-education facilities
Similarly, the possibility to provide access to such facilities in developing regions of the world is also viable and particularly attractive in the short to mid-term. Private LAN connection facilities could also be made available to the corporate user, offering the possibility to establish broadband internet access within a closed user group. Such a scenario could be of interest to the financial sector. By gathering the knowledge and experiences of well-known satellite systems experts from different parts of Europe this comprehensive volume provides detailed analysis on technical aspects for interconnecting local area network using satellite. Starting from traffic source modelling for different types of applications and services to different types of transmission techniques and networking functions for supporting such services, different case studies are presented to analyse the performance of such technologies.
By providing an insight to current and future developments in satellite communications systems and by covering a broad range of materials in technical aspects in relation to satellite communication systems technologies, this volume will be of tremendous use to researchers, academia and industry.
* First book to present such a thorough description of the reliability functions of satellite systems
* Discusses IP over satellite
* Provides a unique analysis and description of different simulation tools that are under development for evaluating the performance of satellite systems
* Includes a chapter devoted to traffic modelling for satellite systems
* Reviews current research and developments in security and discusses how such security functions can be implemented over satellite networks
* Addresses different types of routing strategies and includes three different case studies which have been carried out to analyse the performance of different routing strategies

Spis treści

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

Blurb

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

∗ Covers transmission aspects including modulation and coding schemes, Doppler frequency shift correction and interference modelling

∗ 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

∗ Discusses the technical challenges involved in the implementation of TCP/IP over satellite and the on–going development in mobile IP

∗ 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.