Application-layer mobility using SIP
ACM SIGMOBILE Mobile Computing and Communications Review
User Mode Linux(R) (Bruce Perens Open Source)
User Mode Linux(R) (Bruce Perens Open Source)
The IMS service platform: a solution for next-generation network operators to be more than bit pipes
IEEE Communications Magazine
A survey of IMS clients for NGN service delivery
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
Virtual basestation: architecture for an open shared WiMAX framework
Proceedings of the second ACM SIGCOMM workshop on Virtualized infrastructure systems and architectures
A virtualization architecture for mobile WiMAX networks
ACM SIGMOBILE Mobile Computing and Communications Review
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The 3GPP System Architecture Evolution (SAE) is a very attractive environment from the service provisioning perspective, thanks to the variety of access technologies and mobility features introduced. In such a diverse environment, experimentation infrastructures (i.e., testbeds) become a key instrument for telecom operators, since mobility solutions and service behavior in their presence need to be validated under the different possible configurations from early development stages. However, the complexity of 3GPP SAE scenarios hinders conventional testbeds from adhering to cost-effectiveness and business-oriented criteria, due to the high infrastructure and operational costs involved. In order to overcome these limitations, this paper proposes an experimentation infrastructure that, based on combining virtualization techniques with several of the available open source IMS and mobility toolkits, allows the easy creation and deployment of complex 3GPP SAE network emulation scenarios while minimizing the associated expenditures.