The term Virtual Private Network (VPN) encompasses a wide array of diverse technologies and network architectures. All VPNs should provide users with the isolation and security associated with private networks, but at lower costs made possible by implementing these networks over some type of shared infrastructure. Provider provisioned VPN allow enterprises to outsource their private backbone ne...

-When designing wireless sensor networks, the process of establishing and distributing the secret keys securely and efficiently is very challenging due to the unpredictable network topology. Recently, hypercube virtual backbone approach has been used to provide efficient data gathering schemes for the wireless sensor networks. The hypercube attractive structure and topological properties provid...

This paper proposes a design methodology based on the application of genetic algorithms (GA) to find a minimal-cost topological structure of MPLS-based networks. MPLS technology is currently deployed in designing the backbone infrastructure of service provider networks whereas other parts of the network are still operated using the traditional IP protocol. This makes the overall topological str...