Optical Burst Switched Networks (eBook)

Contents 7
Preface 15
Chapter 1 INTRODUCTION 17
1.1 Optical Circuit Switching 19
1.2 Optical Packet Switching 20
1.3 Optical Burst Switching 22
References 25
Chapter 2 TECHNOLOGY AND ARCHITECTURE 27
2.1 OBS Network Architecture 27
2.2 Enabling Technology 31
2.3 Physical- Layer Issues 34
References 37
Chapter 3 BURST ASSEMBLY 39
3.1 Timer and Threshold Selection 40
3.2 Effect of Burst Assembly on Traffic Characteristics 42
3.3 Evaluation of Threshold- Based Burst Assembly Techniques 43
References 51
Chapter 4 SIGNALING 53
4.1 Classification of Signaling Schemes 53
4.2 Just- Enough- Time ( JET) 58
4.3 Tell-and-Wait (TAW) 60
4.4 Intermediate Node Initiated ( INI) Signaling 61
4.5 Analytical Delay Model 66
4.6 Numerical Results 69
References 72
Chapter 5 CONTENTION RESOLUTION 73
5.1 Optical Buffering 73
5.2 Wavelength Conversion 75
5.3 Deflection Routing 76
5.4 Burst Segmentation 77
5.5 Segmentation with Deflection 82
5.6 Contention Resolution and QoS 92
References 93
Chapter 6 CHANNEL SCHEDULING 97
6.1 Segmentation- Based Channel Scheduling 102
6.2 OBS Core Node Architecture 104
6.3 Segmentation- Based Non- Preemptive Scheduling Algorithms 105
6.4 Segmentation- Based Non- Preemptive Scheduling Algorithms with FDLs 110
6.5 Numerical Results 114
References 120
Chapter 7 QUALITY OF SERVICE 122
7.1 Relative QoS in OBS Networks 123
7.2 Absolute QoS 137
References 145
Chapter 8 OTHER TOPICS 148
8.1 Labeled OBS 148
8.2 Multicasting in OBS 150
8.3 Protection for Optical Burst- Switched Networks 151
8.4 TCP over OBS 153
8.5 OBS Testbeds 156
References 157
Index 159