下一代以太无源光网络中资源管理的研究
发布时间：2023-11-12 12:55
近年来,全球的互联网用户数目持续增加,大量的新兴高速数据业务也不断涌现,包括云存储、云计算、高清电视、网络游戏、视频广播、视频会议和云文件共享等。因此学术界和工业界一直在不断探索部署吉比特带宽的网络设施来满足用户需求。无源光网络(Passive Optical Networks,PON)以其大容量、高覆盖、低成本的优势成为接入网中最主要也极具发展前景的解决方案。为了实现PON系统速率继续升级,电信两大标准组织IEEE和ITU-T分别开始讨论NG-EPON和XGS-PON的标准。本文研究NG-EPON。NG-EPON采用单波长25Gbps,四个波长复用的方式实现100Gbps容量,并有巨大的潜力去支持第五代移动通信的回传前传等业务。与之前的PON系统不同的是,NG-EPON中每个光网络单元(Optical Network Unit ONU)可以同时在一个或多个波长上传送数据,这引发了许多新的问题,例如带宽资源的优化,波长分配的数量和机制,乱序帧问题。因此NG-EPON系统需要设计一个高效的带宽以及波长资源管理的机制。针对EPON和10G-EPON中动态带宽分配(Dynamic Bandw...
【文章页数】：132 页
【学位级别】：博士
【文章目录】：
摘要
ABSTRACT
1. INTRODUCTION
1.1 GLOBAL TRAFFIC TRENDS
1.2 NEED OF PONS
1.3 EVOLUTION OF PON TOWARDS NG-EPON
1.3.1 PON Standards
1.3.2 EPON Standards
1.3.3 10G-EPON
1.3.4 NG-EPON
1.4 ANALYSIS OF DBA IN NG-EPON
1.4.1 Grant Scheduling Framework
1.4.2 Grant Sizing Policy
1.4.3 Grant Scheduling Policy
1.4.4 Related Work
1.4.4.1 IPACT DBA
1.4.4.2 EFT-DBA
1.4.4.3 Water-Filling DBA
1.5 MOTIVATION OF OUR RESEARCH WORK
1.5.1 DBA Related Problems
1.5.2 Our Goals
1.6 SUMMARY OF CHAPTER
2. SOLUTION FOR RESEQUENCING PROBLEM IN NG-EPON
2.1 SCHEDULING ARCHITECTURE OF NG-EPON
2.2 MPCP IN NG-EPON
2.3 QUEUE HANDLING AT ONU IN NG-EPON
2.4 PROBLEM STATEMENT
2.4.1 Frame Size Mismatching Problem
2.4.2 Frame Resequencing Delay Problem
2.5 RESEQUENCING DELAY IN MODIFIED-IPACT AND WF-DBA
2.6 PROPOSED DBA FOR RESEQUENCING PROBLEM IN NG-EPON
2.6.1 First-Fit DBA Algorithm
2.7 IN-DEPTH ANALYSIS OF PROPOSED SOLUTION
2.8 SUMMARY OF CHAPTER
3. FLEXIBLE RESOURCE MANAGEMENT IN NG-EPON
3.1 PROBLEM STATEMENT
3.2 FLEXIBLE RESOURCE MANAGEMENT IN NG-EPON AND RELATED WORK
3.2.1 Flexible Resource Management using Modified-IPACT
3.2.2 Flexible Resource Management using First-Fit DBA
3.2.3 Flexible Resource management using Water-Filling DBA
3.2.4 Performance Comparison between First-Fit DBA and WF-DBA
3.2.5 Flexible Resource Management using WF-DBA in Limited Access Mode
3.3 PROPOSED DBA FOR FLEXIBLE RESOURCE MANAGEMENT
3.3.1 Flexible Wavelength DBA Algorithm
3.4 IN-DEPTH ANALYSIS OF PROPOSED SOLUTION
3.4.1 Impact of network and ONUs parameters on the Proposed Solution
3.4.2 Impact of number of ONUs in the network
3.5 SUMMARY OF CHAPTER
4. PERFORMANCE EVALUATION
4.1 SIMULATION ENVIRONMENT
4.2 TRAFFIC MODEL
4.3 PERFORMANCE EVALUATION OF FF-DBA
4.3.1 Average Packet Delay
4.3.2 Reduction in bandwidth wastage due to guard time
4.3.3 Frame resequencing Delay Analysis
4.3.4 Jitter Analysis
4.3.5 Average Packet Drop Ratio
4.3.6 Channel Utilization Analysis
4.3.7 Grant Utilization Analysis
4.4 PERFORMANCE EVALUATION OF FW-DBA
4.4.1 Average Packet Delay
4.4.2 Flexible number of wavelengths allocation
4.4.3 Reduction in bandwidth wastage due to guard time
4.4.4 Grant Utilization Analysis
4.4.5 Jitter Analysis
4.4.6 Comparison of all DBA algorithms in terms of Frame Resequencing Delay
4.4.7 Relation between number of ONUs in the Network and Optimal value of alpha
4.5 SUMMARY OF CHAPTER
5. FURTHER DISCUSSION AND CONCLUSION
5.1 FIRST-FIT DBA
5.2 FLEXIBLE WAVELENGTH DBA
5.3 CONCLUSION
REFERENCES
APPENDIX
A. LIST OF PUBLICATIONS
B. LIST OF ACRONYM
C. RESEARCH PROJECTS
ACKNOWLEDGEMENTS
本文编号：3863196
【文章页数】：132 页
【学位级别】：博士
【文章目录】：
摘要
ABSTRACT
1. INTRODUCTION
1.1 GLOBAL TRAFFIC TRENDS
1.2 NEED OF PONS
1.3 EVOLUTION OF PON TOWARDS NG-EPON
1.3.1 PON Standards
1.3.2 EPON Standards
1.3.3 10G-EPON
1.3.4 NG-EPON
1.4 ANALYSIS OF DBA IN NG-EPON
1.4.1 Grant Scheduling Framework
1.4.2 Grant Sizing Policy
1.4.3 Grant Scheduling Policy
1.4.4 Related Work
1.4.4.1 IPACT DBA
1.4.4.2 EFT-DBA
1.4.4.3 Water-Filling DBA
1.5 MOTIVATION OF OUR RESEARCH WORK
1.5.1 DBA Related Problems
1.5.2 Our Goals
1.6 SUMMARY OF CHAPTER
2. SOLUTION FOR RESEQUENCING PROBLEM IN NG-EPON
2.1 SCHEDULING ARCHITECTURE OF NG-EPON
2.2 MPCP IN NG-EPON
2.3 QUEUE HANDLING AT ONU IN NG-EPON
2.4 PROBLEM STATEMENT
2.4.1 Frame Size Mismatching Problem
2.4.2 Frame Resequencing Delay Problem
2.5 RESEQUENCING DELAY IN MODIFIED-IPACT AND WF-DBA
2.6 PROPOSED DBA FOR RESEQUENCING PROBLEM IN NG-EPON
2.6.1 First-Fit DBA Algorithm
2.7 IN-DEPTH ANALYSIS OF PROPOSED SOLUTION
2.8 SUMMARY OF CHAPTER
3. FLEXIBLE RESOURCE MANAGEMENT IN NG-EPON
3.1 PROBLEM STATEMENT
3.2 FLEXIBLE RESOURCE MANAGEMENT IN NG-EPON AND RELATED WORK
3.2.1 Flexible Resource Management using Modified-IPACT
3.2.2 Flexible Resource Management using First-Fit DBA
3.2.3 Flexible Resource management using Water-Filling DBA
3.2.4 Performance Comparison between First-Fit DBA and WF-DBA
3.2.5 Flexible Resource Management using WF-DBA in Limited Access Mode
3.3 PROPOSED DBA FOR FLEXIBLE RESOURCE MANAGEMENT
3.3.1 Flexible Wavelength DBA Algorithm
3.4 IN-DEPTH ANALYSIS OF PROPOSED SOLUTION
3.4.1 Impact of network and ONUs parameters on the Proposed Solution
3.4.2 Impact of number of ONUs in the network
3.5 SUMMARY OF CHAPTER
4. PERFORMANCE EVALUATION
4.1 SIMULATION ENVIRONMENT
4.2 TRAFFIC MODEL
4.3 PERFORMANCE EVALUATION OF FF-DBA
4.3.1 Average Packet Delay
4.3.2 Reduction in bandwidth wastage due to guard time
4.3.3 Frame resequencing Delay Analysis
4.3.4 Jitter Analysis
4.3.5 Average Packet Drop Ratio
4.3.6 Channel Utilization Analysis
4.3.7 Grant Utilization Analysis
4.4 PERFORMANCE EVALUATION OF FW-DBA
4.4.1 Average Packet Delay
4.4.2 Flexible number of wavelengths allocation
4.4.3 Reduction in bandwidth wastage due to guard time
4.4.4 Grant Utilization Analysis
4.4.5 Jitter Analysis
4.4.6 Comparison of all DBA algorithms in terms of Frame Resequencing Delay
4.4.7 Relation between number of ONUs in the Network and Optimal value of alpha
4.5 SUMMARY OF CHAPTER
5. FURTHER DISCUSSION AND CONCLUSION
5.1 FIRST-FIT DBA
5.2 FLEXIBLE WAVELENGTH DBA
5.3 CONCLUSION
REFERENCES
APPENDIX
A. LIST OF PUBLICATIONS
B. LIST OF ACRONYM
C. RESEARCH PROJECTS
ACKNOWLEDGEMENTS
本文编号：3863196
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