Optical CDMA Networks / Wiley - IEEE (ePub)

List of Figures xiii List of Tables xxv Preface xxvii Acknowledgements xxxiii 1 Introduction to Optical Communications 1 1.1 Evolution of Lightwave Technology 1 1.2 Laser Technologies 3 1.3 Optical Fibre Communication Systems 4 1.4 Lightwave Technology in Future 7 1.5 Optical Lightwave Spectrum 7 1.6 Optical Fibre Transmission 9 1.7 Multiple Access Techniques 10 1.8 Spread Spectrum Communications Techniques 14 1.9 Motivations for Optical CDMA Communications 21 1.10 Access Networks Challenges 22 1.11 Summary 23 References 24 2 Optical Spreading Codes 29 2.1 Introduction 29 2.2 Bipolar Codes 30 2.3 Unipolar Codes: Optical Orthogonal Codes 37 2.4 Unipolar Codes: Prime Code Families 41 2.5 Codes with Ideal In-Phase Cross-Correlation 62 2.6 Multidimensional Optical Codes 76 2.7 Channel Encoding in OCDMA Systems 84 2.8 Turbo-Coded Optical CDMA 100 2.9 Summary 110 References 111 3 Optical CDMA Review 115 3.1 Introduction 115 3.2 Optical Coding Principles 115 3.3 OCDMA Networking: Users Are Codes 117 3.4 Optical CDMA Techniques 119 3.5 Free-Space and Atmospheric Optical CDMA 126 3.6 Summary 128 References 128 4 Spectrally Encoded OCDMA Networks 133 4.1 Introduction 133 4.2 Spectral-Amplitude-Coding Schemes 134 4.3 System Considerations 141 4.4 Gaussian Approach Analysis 144 4.5 Negative Binomial Approach Analysis 153 4.6 Spectral-Phase-Coding Schemes 164 4.7 Summary 167 References 167 5 Incoherent Temporal OCDMA Networks 171 5.1 Introduction 171 5.2 PPM-OCDMA Signalling 172 5.3 PPM-OCDMA Transceiver Architecture 173 5.4 PPM-OCDMA Performance Analysis 180 5.5 Discussion of Results 183 5.6 Overlapping PPM-OCDMA Signalling 187 5.7 OPPM-OCDMA Transceiver Architecture 188 5.8 OPPM-OCDMA Performance Analysis 196 .9 Discussion of Results 203 5.10 Analysis of Throughput 209 5.11 Summary 211 References 211 6 Coherent Temporal OCDMA Networks 213 6.1 Introduction 213 6.2 Coherent Homodyne BPSK-OCDMA Architecture 214 6.3 Coherent Heterodyne BPSK-OCDMA Architecture 222 6.4 Summary 229

Dr. Hooshang Ghafouri-Shiraz, University of Birmingham, UK
Hooshang Ghafouri-Shiraz received his B.Sc. and M.Sc. degrees in
electronic and electrical engineering from Shiraz University,
Shiraz, Iran, in 1973 and 1978, respectively, and the Doctor of
Engineering (D.Eng.) degree from the University of Tokyo, Tokyo,
Japan, in 1985. Ghafouri-Shiraz is a Reader in optical and
microwave communications, Director of postgraduate research at
University of Birmingham (Dept. of EECE). His research interests
include optical CDMA, optical networks, optical devices, optical
fibre communications, nonlinear optics, and microwave propagation.

Dr. Massoud Karbassian, University of Birmingham, UK
Massoud Karbassian received his Ph.D. degree in optical
communications and networks from the University of Birmingham in
2009. He is a researcher in the Optical Devices and Communication
Laboratory in the Department of Electronic, Electrical and Computer
Engineering, where he has been working on optical CDMA transport
networks since 2006. Dr. Karbassian has been recently working
extensively on investigating IP-over-OCDMA communications for next
generation access networks.

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