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- Yu Liu, David Tipper, Korn Vajanapoom
- IEEE Journal on Selected Areas in Communications
- 2007

In this paper we consider the problem of provisioning spare capacity in two-layer backbone networks using shared backup path protection. First, two spare capacity allocation (SCA) optimization problems are formulated as integer linear programming (ILP) models for the cases of protection at the top layer against failures at the bottom layer. The first model… (More)

- Korn Vajanapoom, David Tipper, Sira Akavipat
- Telecommunication Systems
- 2013

This paper presents a risk-based approach to resilient network design. The basic design problem considered is that given a working network and a fixed budget, how best to allocate the budget for deploying a survivability technique in different parts of the network based on managing the risk. The term risk measures two related quantities: the likelihood of… (More)

- Korn Vajanapoom, David Tipper
- 2007 6th International Workshop on Design and…
- 2007

This paper presents a new approach for incremental survivable network design based on the use of risk analysis techniques. The objective of the design approach is: given a fixed budget, determine how to incrementally improve the network survivability in order to reduce the risk from network failures. Risk is defined as the product of the failure probability… (More)

- Korn Vajanapoom, David Tipper, Sira Akavipat
- ICUMT
- 2010

This paper considers the problem of where a survivability technique should be deployed in a network based on managing risk given a limited financial budget. We formulate three novel risk management resilient network design techniques: (1) minimize the maximum damage that could occur in the network, (2) minimize the maximum risk in the network and (3)… (More)

- Korn Vajanapoom, David Tipper
- 2006 IEEE International Performance Computing and…
- 2006

This paper presents an investment strategy to reduce the risk associated with failures in wavelength division multiplexing (WDM) optical networks. The investment strategy determines how to allocate a fixed budget for implementing survivability techniques in different parts of the network such that the expected loss of traffic (ELT) is minimized. Two… (More)

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