9781848216969 | New Telecom Networks ...

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Nowadays, the Internet has become an irreplaceable tool, feeding us information about new innovations and the evolution of the markets relating to all human activities. What the Internet lacks, though, is a guiding narrative thread, which is crucial to understand the evolution from old technologies into the technologies available today, and to benefit from the commentary which could elucidate that process of evolution. In spite of its inherent richness, no encyclopedia can constitute the one and only referential information source. The actors involved also have the right to be heard: all those who have devoted their working lives to the collective effort of edifying networks can, of course, present their personal views about the evolution of the world of telecommunications, and thus provide invaluable testimony to companies in this area who can make use of it. It is that approach which is adopted in this book.

Whilst the primary objective of this book is to encourage SMEs to use digital technologies, and help them to organize with that goal in mind, it has proved necessary to describe the transformations currently under way in the field of networks, and to outline the efforts to obtain a competitive edge in terms of clerical applications, compare the various techniques that are available for high data rate communications, and touch upon the advent of the "Internet of Things", cloud computing and various new multimedia technologies.

All in all, this book should help companies – particularly SMEs – to garner overall information about the current movement in the area of networking, and assist them in putting in place and managing their own communications systems.

Daniel Battu is an Emeritus Chief Engineer of Telecommunications and a consultant in network standardization. He is the author of several technical publications in telecoms and multimedia and a former researcher at CNET and multimedia teacher at the Paris-Dauphine University in France.

FOREWORD xv

INTRODUCTION xvii

CHAPTER 1. FUNDAMENTALS 1

1.1. Different kinds of network 1

1.2. Financial aspects relating to networks 13

1.3. Historical overview of the communications market 17

1.4. Networking techniques 25

1.5. Choices available to companies in a changing world 32

1.6. Summary 34

CHAPTER 2. COMMUNICATION TECHNIQUES 35

2.1. Transmission parameters 35

2.2. Modulation and encoding 39

2.3. Switching 44

2.4. Signaling in networks 46

2.5. Protocols and data exploitation 47

2.6. The “OSI model” 52

2.7. Local Area Network (LAN) 67

2.8. Public data networks (Wide-Area Networks – WANs) 75

2.9. Network management 79

2.10. Summary 80

CHAPTER 3. TRANSMISSION SUPPORTS 81

3.1. Description of supports 81

3.2. Digital wireless access systems 85

3.3. ADSL systems 105

3.4. Power-Line Communications (PLC) 107

3.5. Composite access networks 107

3.6. Specific network structures 113

3.7. Reminder of the possible data rates 115

3.8. Regulations to be observed by operators 117

CHAPTER 4. NETWORKING PROTOCOLS 119

4.1. Problems needing to be resolved 119

4.2. Circuit-switching and network intelligence 123

4.3. Packet-Switched Data Network (PSDN) 129

4.4. NGNs and IMS (IP Multimedia Subsystem) 136

4.5. Virtualization 145

4.6. Network security 149

4.7. Conclusion 158

CHAPTER 5. VOICE SERVICE AND MESSAGING 159

5.1. Criteria of quality for voice signals 159

5.2.Voice interface 160

5.3. VoIP and ToIP 164

5.4. Clerical works 166

5.5. Exploitation of messaging 189

5.6. Communications with the emergency services 191

5.7. Conclusion 193

CHAPTER 6. DATA APPLICATIONS 195

6.1. Multimedia services 195

6.2. Digital Signage 197

6.3. Identification technologies 202

6.4. Image services 206

6.5. Conclusion 211

CHAPTER 7. THE INTERNET AND THE NGN 213

7.1. Creation and principles of NGNs 213

7.2. Usual applications on the Internet 222

7.3. Developments currently under way 232

7.4. Cloud computing 239

7.5. Big Data 242

7.6. The Internet of Things (IoT) and M2M 243

7.7. Social networks and social media 247

7.8. Principles of charging 255

7.9. The weaknesses of the NGN/Internet construction 259

7.10. Where is the NGN heading to? 271

7.11. Conclusion 280

CHAPTER 8. CHOICES FOR BUSINESSES 281

8.1. Analysis of the need for communication 282

8.2. ICTs in SMEs 288

8.3. Technological evolution and associated costs 296

8.4. Security in SMEs 301

8.5. Best practices 312

8.6. References regarding cyber security 324

8.7. A few organizations operating in good security practices 325

8.8. Conclusion 328

OVERVIEW AND CONCLUSIONS 329

APPENDIX 343

GLOSSARY 359

BIBLIOGRAPHY 367

INDEX 371

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New Telecom Networks Enterprises and Security

New Telecom Networks Enterprises and Security

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