Hanrahan Network Convergence

Services, Applications, Transport, and Operations Support
1. Auflage 2007
ISBN: 978-0-470-02442-3
Verlag: John Wiley & Sons
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 464 Seiten, E-Book

The present information age is enabled by telecommunications andinformation technology and the continued convergence of theirservices, technologies and business models. Withintelecommunications, the historic separations between fixednetworks, mobile telephone networks and data communications arediminishing. Similarly, information technology and enterprisecommunications show convergence with telecommunications. Thesesynergies are captured in the concept of Next Generation Networksthat result from evolution to new technologies, enabling newservices and applications.
Network Convergence creates a framework to aid theunderstanding of Next Generation Networks, their potential forsupporting new and enhanced applications and their relationshipswith legacy networks. The book identifies and explains the conceptsand principles underlying standards for networks, services andapplications.
Network Convergence:
* Gives comprehensive coverage of packet multimedia, enterprisenetworks, third generation mobile communications, OSA/Parlay anddevelopments in fixed networks.
* Gives an integrated view of diverse information andcommunications systems and technology through a common NGNFramework.
* Delves into protocols, APIs and software processes forsupporting services and applications in advanced networks.
* Discusses a variety of applications of telecommunicationssupporting IT and IT enhanced by communications.
* Follows developments in operations support systems standardsand links these to next generation networks.
* Includes a wealth of examples, use cases, tables andillustrations that help reinforce the material for students andpractitioners.
* Features an accompanying website with PowerPoint presentations,glossary, web references, tutorial problems, and 'learn more'pages.
This essential reference guide will prove invaluable to advancedundergraduate and graduate students, academics and researchers. Itwill also be of interest to professionals working fortelecommunications network operators, equipment vendors, telecomsregulators, and engineers who wish to further their knowledge ofnext generation networks.

Autoren/Hrsg.

Hanrahan, Hu

Inhaltsverzeichnis

Preface.
Acknowledgments.
Conventions.
Companion Website.
Abbreviations.
Principal Graphic Symbols.
1 Setting the Context for Evolution and Convergence ofNetworks.
1.1 Historical Background to Present Networks.
1.2 Defining Present State Using Reference Models.
1.3 Evolution and Convergence.
1.4 The Next GenerationNetwork Concept.
1.5 Conclusion.
2 A Framework for Examining Next Generation Networks.
2.1 Characteristics of Evolving Networks.
2.2 Dealing with Complexity.
2.3 Framework for EvolvingNetworks.
2.4 Examples of Application of Framework.
2.5 Conclusion.
3 Software Methodologies for Converged Networks andServices.
3.1 Development of Software Methodologies for ICT.
3.2 Software Processes in the NGN Framework.
3.3 High-level Analysis and DesignMethods.
3.4 Enterprise and Business Modelling Notation.
3.5 Object and Data Definition Languages.
3.6 Dynamic Modelling Notations.
3.7 Component and Interface Notations.
3.8 Distributed Systems.
3.9 Creating a Unified Framework.
4 An NGN: the Managed Voice over IP Network.
4.1 Development of Packet Multimedia Standards.
4.2 Requirements on a Managed Voice Network.
4.3 Properties of Packetised Voice.
4.4 General Concepts of Multimedia Communications.
4.5 Signalling Plane for Packet Multimedia.
4.6 The H.323 Suite.
4.7 Media Gateway Functions and Control.
4.8 Multimedia Communications Based on SIP.
4.9 Supplementary Services in Packet Telephony.
4.10 ITU-T Evolutionary Protocols: BICC.
4.11 Voice on the Internet.
4.12 Conclusion.
5 Integrated Enterprise ICT Systems.
5.1 Drivers and Requirements.
5.2 Contributions to Convergence.
5.3 Network Level Convergence.
5.4 Application and Service Level Convergence.
5.5 Conclusions.
6 Legacies and Lessons: Broadband ISDN, TINA andTIPHON.
6.1 Learning from History.
6.2 The Broadband ISDN.
6.3 TINA Architecture.
6.4 Business Model and Reference Points.
6.5 TINA Service Architecture.
6.6 Network Resource Architecture.
6.7 Lessons from TINA for NGNs.
6.8 TIPHON.
6.9 Conclusion.
7 Important NGNs: Third Generation Mobile CommunicationSystems.
7.1 Architectural Concepts.
7.2 Mobile Communication System Evolution.
7.3 Services in the CS Domain.
7.4 Packet-switched Domain: GPRS-based Systems.
7.5 IP Multimedia Subsystem.
7.6 Conclusion.
8 Opening the Network using Application ProgrammingInterfaces.
8.1 Closed Network Evolution.
8.2 Opening the Network.
8.3 The OSA/Parlay Architecture.
8.4 Framework Interfaces and Use Cases.
8.5 The OSA/Parlay Gateway.
8.6 Communication-orientatedUse Cases.
8.7 ParlayXWeb Services.
8.8 OSA/Parlay API Implementation Issues.
8.9 Other Approaches to Open Networks.
8.10 Conclusion.
9 Operations Support Systems.
9.1 Relationship of OSS/BSS to ICT Systems.
9.2 Evolution of OSS/BSS.
9.3 The Telecommunications Operations Map.
9.4 Enhancement of the TOM: eTOM.
9.5 New Generation OSS.
9.6 Conclusion.
10 Migration from Legacy to Next Generation Networks.
10.1 Retrospect.
10.2 Reflecting on Evolution and Convergence.
10.3 TechnologyMigration.
10.4 Is There a Target NGN?
10.5 Managing Complexity: Avoiding Pitfalls.
10.6 A Last Word.
Glossary.
References
Index.

Über Autor(innen)

Hu Hanrahan is Professor of Communications Engineering and Director of the Centre for Telecommunications Access and Services at the University of the Witswatersrand. He is a graduate of the University of the Witswatersrand, from where he also received his Doctorate. He has extensive experience of teaching in the subject area and is also active as consultant for a large number of companies and public utilities. His academic publication record is extensive over many aspects of communications technology.