E-Book, Englisch, 320 Seiten, E-Book
ISBN: 978-1-118-56271-0
Verlag: John Wiley & Sons
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)
The aim of this book is to look at the free space optics that arealready used for the exchange of current information; its manybenefits, such as incorporating channel properties, propagationmodels, link budgets, data processing including coding, modulation,standards and concerns around health and safety (IEC 60825 or FCC -Class 1 for example), etc. will become indispensable over the nextdecade in addressing computer architectures for short-, medium- andlong-range telecommunications as we move from gigabytes toterabytes per second.
Wireless Optical Communications is an excellent tool for anyengineer wanting to learn about wireless optical communications orinvolved in the implementation of real complete systems. Studentswill find a wide range of information and useful concepts such asthose relating to propagation, optics and photometry, as well thenecessary information on safety.
Contents
1. Light.
2. History of Optical Telecommunications.
3. The Contemporary and the Everyday Life of Wireless OpticalCommunication.
4. Propagation Model.
5. Propagation in the Atmosphere.
6. Indoor Optic Link Budget.
7. Immunity, Safety, Energy and Legislation.
8. Optics and Optronics.
9. Data Processing.
10. Data Transmission.
11. Installation and System Engineering.
12. Conclusion.
Autoren/Hrsg.
Weitere Infos & Material
Foreword.xi
Pierre-Noël FAVENNEC
Acronyms xiii
Introduction.xix
Chapter 1. Light 1
Chapter 2. History of Optical Telecommunications 7
2.1. Some definitions 7
2.2. The prehistory of telecommunications 8
2.3. The optical aerial telegraph 11
2.4. The code 14
2.5. The optical telegraph 18
2.6. Alexander Graham Bell's photophone 20
Chapter 3. The Contemporary and the Everyday Life of WirelessOptical Communication 25
3.1. Basic principles 25
3.2. Wireless optical communication 53
Chapter 4. Propagation Model 63
4.1. Introduction.63
4.2. Baseband equivalent model 63
4.3. Diffuse propagation link budget in a confined environment73
Chapter 5. Propagation in the Atmosphere 85
5.1. Introduction.85
5.2. The atmosphere 86
5.3. The propagation of light in the atmosphere 87
5.4. Models.93
5.5. Experimental set-up 103
5.6. Experimental results.104
5.7. Fog, haze, and mist 107
5.8. The runway visual range (RVR) 108
5.9. Calculating process of an FSO link availability 114
5.10. Conclusion 116
Chapter 6. Indoor Optic Link Budget.119
6.1. Emission and reception parameters 119
6.2. Link budget for line of sight communication 128
6.3. Link budget for communication with retroreflectors.132
6.4. Examples of optical budget and signal-to-noise ratio (SNR)135
Chapter 7. Immunity, Safety, Energy and Legislation141
7.1. Immunity 141
7.2. The confidentiality of communication 149
7.3. Energy 153
7.4. Legislation 154
Chapter 8. Optics and Optronics 157
8.1. Overview 157
8.2. Optronics: transmitters and receivers.157
8.3. Optics 170
Chapter 9. Data Processing 177
9.1. Introduction.177
9.2. Modulation 178
9.3. The coding 184
Chapter 10. Data Transmission 197
10.1. Introduction 197
10.2. Point-to-point link 201
10.3. Point-to-multipoint data link 206
10.4. Summary 212
Chapter 11. Installation and System Engineering 213
11.1. Free-space optic system engineering and installation213
11.2. Wireless optical system installation engineering inlimited space 225
Chapter 12. Conclusion.237
APPENDICES 241
Appendix 1. Geometrical Optics, Photometry and Energy Elements243
Appendix 2. The Decibel Unit (dB) 257
Bibliography 261
List of Figures 273
List of Tables 277
List of Equations 279
Index 283
