Terrestrial Trunked Radio (TETRA) has become the tool to design any type of public security systems, in particular due to the strongly increased security demands for mobile systems. In this book, the authors show how TETRA can be strongly improved and these improvements will most probably be part of future TETRA standards. The areas examined include channel assignment and multiple access techniques, video transmission, wireless LAN integration, and the establishment of multiple wireless mesh networks. Since the requirements for these networks is security, the authors show that innovative techniques such as those based on chaotic signals can be used in order to maximize security. The book is a vital reference point for researchers with ambition to find the general solution for modern problems of public safety.
Author(s): Peter Stavroulakis
Edition: 1
Year: 2007
Language: English
Pages: 318
3540711902......Page 1
Table of Contents......Page 10
1.1 Why TETRA......Page 14
References......Page 17
2.1 Introduction......Page 18
2.2.1 PMR Configurations......Page 19
2.2.2 Comparison Between PMR and Cellular [2]......Page 24
2.2.3 PMR Standards [1]......Page 27
2.3.1 Edge of Coverage Voice Quality......Page 41
2.3.2 Requirements of PMR Services......Page 46
2.3.3 Interoperability [6]......Page 50
References......Page 55
3.1 Introduction......Page 56
3.2.1 Air interface specifications......Page 57
3.2.3 Enhanced Multi-Level Precedence and Pre-emption service (eMLPP)......Page 58
3.2.4 Voice Group Call Service (VGCS)......Page 59
3.3 TETRA......Page 60
3.3.1 Comparison of specified features......Page 61
3.3.2 Technical analysis......Page 62
References......Page 79
4.1.1 Introduction......Page 80
4.1.2 Channel Allocation Schemes......Page 81
4.2.2 Model Formulation......Page 93
4.2.3 One Layer Architecture using Erlang Model......Page 95
4.2.4 Channel Assignment Scheme based on a Three Layer Architecture......Page 97
4.2.5 Comparison of One layer with Three Layer Architecture......Page 103
4.3.1 CDMA Techniques in TETRA systems......Page 115
References......Page 139
5.1 Introduction......Page 145
5.2 Evolution of Public Safety Mobile Networks......Page 146
5.2.1 Evolving Data services for public safety......Page 147
5.2.2 The TETRA solution to PSDR communication environment......Page 148
5.2.3 The Market Considerations......Page 150
5.2.4 TETRA Enhanced Data Service-TEDS......Page 151
5.3.1 TETRA (V+D) Technical Characteristics......Page 153
5.3.2 TETRA Network Services......Page 159
5.3.3 High Speed Data service provisioning......Page 161
5.4.1 Background......Page 163
5.4.2 Compression standards overview......Page 165
5.4.3 Encrypted Video over TETRA......Page 182
5.5 Performance Analysis of video broadcasting over TETRA......Page 186
5.5.1 Performance Evaluation......Page 187
5.5.3 Video Quality Measurements......Page 190
5.6.1 Future Trends......Page 193
5.6.2 All-IP convergence......Page 194
5.6.4 TETRA over IP......Page 195
5.6.5 Integrated TETRA-WLAN system......Page 196
5.7 Conclusions......Page 198
References......Page 200
6.1 Introduction......Page 203
6.2 TETRA Air Interface: Logical and Physical Channels......Page 204
6.2.1 Logical Channels......Page 205
6.2.2 Physical channels......Page 206
6.3 TETRA Packet Data Transmission......Page 207
6.3.1 Packet Data transmission and reception procedures......Page 210
6.3.2 TETRA IP user authentication......Page 214
6.4 SNDCP states and state transitions......Page 217
6.5 UDP versus TCP on top of TETRA IP layer......Page 223
6.6 TETRA Packet Data modems......Page 225
6.6.1 Types of Packet-data Mobile Stations......Page 226
6.7 TETRA and WLAN Integration for Improving Packet-Data Transmission Capabilities......Page 228
6.7.1 Integrated WLAN/TETRA System Overview......Page 232
6.8.1 Architecture Elements and Interfaces......Page 235
6.8.2 Protocol Architecture......Page 237
6.8.3 Packet Structure......Page 239
6.8.4 WLAN Association and TETRA Location Update Procedure......Page 240
6.8.5 Group Call Initiation and Participation......Page 242
6.9 Conclusions......Page 243
References......Page 245
7.1 Introduction......Page 247
7.1.1 Requirements......Page 251
7.1.2 Discussion......Page 256
7.2.1 Definition and classification of WMNs......Page 257
7.2.2 MANET routing protocols......Page 258
7.2.3 Influence of routing protocols on network performance......Page 265
7.2.4 Multicast in WMNs......Page 271
7.3.1 DMO overview......Page 275
7.4 TETRA Release 2......Page 285
7.5 TETRA extensions for building WMNs......Page 287
7.5.1 Routing capabilities......Page 289
7.5.2 Wireless Interface......Page 295
7.5.3 Overview of network performance figures......Page 299
7.6 Conclusion......Page 305
References......Page 307
Appendix......Page 311
