title page
Abstract
Contents
I. Introduction 10
1.1. Motivation 10
1.2. Contribution 11
1.3. Outline 11
II. Frameworks for QoS 12
2.1. IntServ Framework 12
2.2. DiffServ Framework 13
2.2.1. Traffic Classification and Conditioning at Edge Node 14
2.2.2. Per-Hop Behavior at Core Node 15
2.3. Centralized Resource Control Framework 15
III. A Framework for Absolute End-to-End delay Guarantee 16
3.1. Framework Overview 16
3.2. Resource Mediator 17
3.3. Resource Manager 19
3.3.1. Path Selection 20
3.3.2. Connection Admission Control 22
3.3.3. Delay Apportionment 23
3.4. ADRR Adoption 25
3.4.1. ADRR Scheme 25
IV. Performance Comparison 28
4.1. Simulation Setup 28
4.2. Simulation Result 29
4.2.1. Experiment 1 30
4.2.2. Experiment 2 36
4.3. Performance Comparison 42
V. Conclusion 43
[국문요약] 44
References 45
Acknowledgements 46
Curriculum Vitae 47
Figure 1. Traffic Classification and Conditioning at Edge Node 14
Figure 2. Framework Overview 17
Figure 3. Static Reference Allocation Example 19
Figure 4. Connection Admssion Control 23
Figure 5. Delay Apportionment 24
Figure 6. ADDR Scheduling Scheme 27
Figure 7. Complexity of ADRR 27
Figure 8. Simulation Topology 28
Figure 9. Additional Traffic of Experiment 1 30
Figure 10. Additional Traffic Pattern of Experiment 1 30
Figure 11. Delay Apportionment per Link of Experiment 1 31
Figure 12. End-to-End Delay per Class of Experiment 1 32
Figure 13. End-to-End Delay Gain per Class of Experiment 1 33
Figure 14. Throughput per Class of Experiment 1 34
Figure 15. Throughput Gain per Class of Experiment 1 35
Figure 16. Additional Traffic of Experiment 2 36
Figure 17. Additional Traffic Pattern of Experiment 2 36
Figure 18. Delay Apportionment per Link of Experiment 2 37
Figure 19. End-to-End Delays per Class of Experiment 2 38
Figure 20. End-to-End Delays Gain per Link of Experiment 2 39
Figure 21. Throughputs per Link of Experiment 2 40
Figure 22. Throughput Gain per Class of Experiment 2 41