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## Gradually Reconfiguring Virtual Network Topologies based on Estimated Traffic Matrices

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206 | Fast accurate computation of large-scale ip traffice matrices from link loads
- Zhang, Roughan, et al.
- 2003
(Show Context)
Citation Context ... network. B. Effectiveness of partial reconfiguration with TM Estimation We first compare the average squared errors of traffic matrix estimation between existing estimation method called tomogravity =-=[15]-=- and our method. Fig. 3 shows the results, where we set the threshold Nr to be 1, 3 and 5. From this figure, we can observe that our method can decrease the estimation error dramatically compared to t... |

148 | Wavelength-routed optical networks: linear formulation, resource budgeting tradeoffs, and a reconfiguration study. - Banerjee, Mukherjee - 2000 |

110 | Some principles for designing a wide-area WDM optical network. 4(5):684–696, - Mukherjee, Banerjee, et al. - 1996 |

109 |
MPLS: technology and applications.
- Davie, Rekhter
- 2000
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Citation Context ... 1, go to Step 1. Otherwise, go to End. End Then, at each stage, after the new VNT is determined, the routes of packets over the VNT is calculated by using CSPF (Constraint-based Shortest Path First) =-=[12]-=- so as to make maximum link utilizations under TH . The detail of the heuristic algorithm is described as follows. 1) Optical path addition phase: If the link utilization of an optical path exceeds TH... |

68 | Traffic engineering with estimated traffic matrices
- Roughan, Thorup, et al.
- 2003
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Citation Context ...stigated the performance of existing TE methods in conjunction with estimated traffic matrices, and revealed that existing TE methods are less robust and do not work properly due to estimation errors =-=[9]-=-, [10]. We thus develop a practical VNT reconfiguration method for optical networks with taking traffic matrix estimation into consideration. According to [10], the full reconfiguration approach, whic... |

59 | Virtual Topology Adaptation for WDM Mesh Networks Under DynamicTraffic” - Gencata, Mukherjee - 2002 |

55 |
Compact Numerical Methods for Computers: Linear Algebra and Function Minimisation-Second Edition
- Nash
- 1990
(Show Context)
Citation Context ...l by X̄′n and ΔĀ′n, respectively. Finally, we use X̄′n = ΔĀ ′ nT, (5) instead of Eq. (2). To estimate the traffic matrix T̂ from Eq. (5), we apply the pseudo-inverse calculation method described in =-=[13]-=-. The traffic matrix T̂ is obtained from T̂ = pinv(Ān)X̄n, (6) where pinv(Ān) is the pseudo-inverse of matrix Ān. If we simply apply [13] to calculate the pseudo-inverse of Ān, some entries in T̂ ... |

14 |
A path computation element (PCE) based architecture, RFC 4655
- Farrel, Vasseur, et al.
- 2006
(Show Context)
Citation Context ...Section 4. II. PARTIAL RECONFIGURATION METHOD WITH TRAFFIC MATRIX ESTIMATION A. Design Principle and Method Overview We assume that the routes and VNT are calculated by PCE (Path Computation Element) =-=[11]-=-. A PCE first gathers the network information and estimate the traffic matrix by our estimation method. Then, PCE calculates the VNT and routes for the next stage by using the estimated traffic matrix... |

11 | Network control and management for the next generation Internet - WEI, LIU, et al. - 2000 |

11 | Distributed virtual network topology control mechanism in GMPLS-based multiregion networks,” - Shiomoto, Oki, et al. - 2003 |

7 | H-G.Yeo, Adaptative Virtual Topology Reconfiguration Policy Employing Multi-stage Traffic Prediction in Optical Internet, High Performance Switching and Routing - Zhang, Lee, et al. - 2002 |

6 | Minimum-cost virtualtopology adaptation for optical WDM mesh networks - Gieselman, Singhal, et al. |

2 | Simulation of a dynamic multi-layer optimization algorithm with SRLG consideration - Hayashi, Miyamura, et al. - 2004 |

1 |
Traffic engineering strategies
- Ohsita, Miyamura, et al.
- 2006
(Show Context)
Citation Context ...ted the performance of existing TE methods in conjunction with estimated traffic matrices, and revealed that existing TE methods are less robust and do not work properly due to estimation errors [9], =-=[10]-=-. We thus develop a practical VNT reconfiguration method for optical networks with taking traffic matrix estimation into consideration. According to [10], the full reconfiguration approach, which comp... |