N2-METAWIN Measurement-based Optimization
Abstract:
About this document This is a document of the N2-METAWIN project. Its scope is to report on the exploitation of the data measured by the METAWIN system for the optmization of the Core Network. Specifically, we address the problem of finding the optimal assignement of Gb links to SGSNs. The optimality criteria are twofolds: balance the peak number of attached MSs to each SGSN, and at the same time minimize the volume of inter-SGSN Routing Area Updates. We present a method to extract the relevant input data (e.g. mobility matrix) from the packet traces collected by the METAWIN system. The traces are collected by passive monitoring of Gb links. We show how to manipulate the measured data (e.g. error clean-up, outlier filtering) and prepare them to serve as the input of the optimization process. We provide a novel Integer Linear Programming (ILP) formulation for the problem under study. Finally, we present numerical results for a case study derived from traces collected in October 2004 from the operational network of mobilkom austria AG & Co KG,. For any comment and/or request for clarification, please contact the author. This report and the future updated versions are available from:
Citations
| 10 | Off-line Configuration of a MPLS over WDM Network under Time-Varying Offered Traffic – Ricciato, Salsano, et al. - 2002 |
| 2 | Routing Demands with Time-Varying Bandwidth Profiles on a MPLS Network – Ricciato, Monaco - 2005 |
