Survivable Network Design: Routing of Flows and Slacks

نویسندگان

  • Deepak Rajan
  • Alper Atamtürk
چکیده

We present a new mixed–integer programming model and a column generation method for the survivable design of telecommunication networks. In contrast to the failure scenario models, the new model has almost the same number of constraints as the regular network design problem, which makes it effective for large instances. Even though the complexity of pricing the exponentially many variables of the model is –hard, in our computational experiments, we are able to produce capacity–efficient survivable networks with dense graphs up to 70 nodes.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A directed cycle-based column-and-cut generation method for capacitated survivable network design

A network is said to be survivable if it has sufficient capacity for rerouting all of its flow under the failure of any one of its edges. Here we present a polyhedral approach for designing survivable networks. We describe a mixed–integer programming model, in which sufficient slack is explicitly introduced on the directed cycles of the network while flow routing decisions are made. In case of ...

متن کامل

A Fast Strategy to Find Solution for Survivable Multicommodity ‎Network‎

This paper proposes an immediately efficient method, based on Benders Decomposition (BD), for solving the survivable capacitated network design problem. This problem involves selecting a set of arcs for building a survivable network at a minimum cost and within a satisfied flow. The system is subject to failure and capacity restriction. To solve this problem, the BD was initially proposed with ...

متن کامل

Design of Routing Tables for a Survivable Military Communications Network using Genetic Algorithms

One of the vital areas in the design and operation of a survivable military telecommunications network is the selection of its routing tables. In this paper, both a bit-string genetic algorithm (GA) and an iterative stochastic hill climber (ISHC) are applied to two problem scenarios: with and without existing routing tables. Experimental results are reported for one destination node in an 18-no...

متن کامل

Survivable lightpath routing: a new approach to the design of WDM-based networks

Network restoration is often done at the electronic layer by rerouting traffic along a redundant path. With Wavelength Division Multiplexing (WDM) as the underlying physical layer, it is possible that both the primary and backup paths traverse the same physical links and would fail simultaneously in the event of a link failure. It is therefore critical that lightpaths are routed in such a way t...

متن کامل

Survivable Routing for WDM Networks: Challenges faced by the South African Service Providers

This paper discusses survivable routing for Wavelength Division Multiplexing (WDM) networks. The downside of boosting network capacity through a technology like WDM is increasing network vulnerability. With more than one network operator in South Africa network survivability will be one of the most important and challenging quality of service (QoS) criteria. This paper investigates new network ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007