Survivable Virtual Network Redesign and Embedding in Cloud Data Center Networks Yiheng Chen Today, the cloud computing paradigm enables multiple virtualized services to co-exist on the same physical machine and share the same physical resources, hardware, as well as energy consumption expenses. To allow cloud customers migrate their services on to the cloud side, the Infrastructure Provider (In...

Increasing societal dependency on critical infrastructure systems is driving emergence of a new category of requirements engineering that addresses survivability objectives. This paper presents a case study in survivability requirements analysis. Survivability is the capability of a system to fulfill its mission, in a timely manner, in the presence of attacks, failures, or accidents. The Surviv...

The design of survivable mesh based communication networks has received considerable attention in recent years. One task is to route backup paths and allocate spare capacity in the network to guarantee seamless communications services survivable to a set of failure scenarios. This is a complex multi-constraint optimization problem, called spare capacity allocation (SCA). This paper presents a m...

Designing a low cost, survivable, telecommunications network is an extremely complicated process. Most commercial products available to help with this process are based on simulation and/or proprietary heuristics. However, there is a growing consensus that mathematical programming belongs in the designer’s “toolkit.” Easyto-use modeling languages coupled with powerful optimization solvers have ...

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 t...