Dissertation > Excellent graduate degree dissertation topics show

Research on the Multi-Failure Protection Algorithm of Automatic Switched Optical Networks

Author: WuZhongXian
Tutor: WangWenZuo
School: Nanjing University of Posts and Telecommunications
Course: Communication and Information System
Keywords: Automatic Switched Optical Network Multi-failure Protection and Restoration Dual Link Failure Shared Risk Link Group GLASS
CLC: TN929.1
Type: Master's thesis
Year: 2011
Downloads: 30
Quote: 0
Read: Download Dissertation

Abstract


With development of the optical transport technology, Automatic Switched Optical Network(ASON) is becoming the key to the next generation optical network. The mesh based ASON introduces a control plane which provides dynamic resources allocation and automatic connection creation functions, and is adapable to the trend of the next generation networks. However, upon deployment of ASON networks, the self-healing under multi-failure in a complex network environment will become a critical issue requiring extensive researching.This thesis focuses on multi-failure protection machanism of next generation optical network, and reports the research of path-protection technology in ASON. Topics include the dual-link failure path protection algorithm and the multi-failure path protection algorithm considering SRLG constraints. Based on the existing Three-Step-Algorithm(TSA), a novel heuristic algorithm considering tap problem, is proposed to avoid link-failure trap, achieve effective resource utilization and balance traffic load. Based on Active Path First (APF), another heuristic algorithm, called conflict detection protection(CDP), is provided to decrease blocking probability and effectively avoid SRLG trap through iteratively testing SRLG conflict link.To verify the feasibility of the proposed algorithms, the simulator GLASS is used for developing an algorithm simulation platform. Results show that the improved TSA can provide complete dual-link failure protection. Meanwhile, the algorithm can decrease the blocking probability without increasing the complexity. In addition, it’s showed that CDP can effectively avoid the trap problems, and give 13% maximum of blocking probability of call lower than APF.

Related Dissertations

  1. Investigations of Structure and Glass Forming Abilty of Amorphous Alloys,TG139.8
  2. Preparation and Properties of lead-free glass powder,TQ171.6
  3. Study on Amorphous Formation Ability and Performance of Pt-Pd-Cu-P Alloys,TG139.8
  4. Research on Design and Optimization Scheme of Optical Fiber Backbone Transmission Network,TN929.1
  5. Research on the Symmetrical Delay Service Path Protection Algorithm of Automatic Switched Optical Network,TN929.1
  6. Routing Algorithm for Theautomatic Switched Optical Network,TN929.1
  7. MD simulation through the metal glass interface shear band propagation,TG139.8
  8. GF / ACF circuit panel absorbing properties of composite materials,TB332
  9. Mg-Ni-La bulk metallic glass systems and hydrogen storage properties of crystallization,TG139.8
  10. Research on Survivability of Automatically Switched Optical Network,TN929.1
  11. The Numerical Simulation Research on Tube Extrusion Forming Technology of Glass/Aluminium Metal Matrix Composites,TG376
  12. Structure and Magnetic Properties of FeCuNb (Ti) SiB,TG139.8
  13. Glass Forming Ability and Atomic Size Factor of Bulk Amorphous Alloys,TG139.8
  14. Experimental Study of Tool Wear in Diamond Cutting of Optical Glass,TG711
  15. Mechanical Behaviors of Zr-based Bulk Metallic Glasses,TG139.8
  16. Pore Structure Characteristics and Durability Analysis of Fiber Reinforced Concrete,TU528.572
  17. Sound Transmission Loss Test System of Industry and Civil Architecture Glass for Experiment Study,P631.443
  18. Study on Preparation and Mechanical Properties of Mg-Li Bulk Amorphous Alloy System,TG139.8
  19. Zr-based amorphous alloys Preparation and Properties,TG139.8
  20. Preparation and Properties of Fe-Co-Ni-Zr-Mo-B-Nd Amorphous Alloys,TG139.8
  21. Experimental Studies on a New Tissue Engineering Bone Lodaded with Bone Morphogenetic Protein and Vascular Endothelial Growth Factor,R318.08

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Lightwave communications, laser communications
© 2012 www.DissertationTopic.Net  Mobile