Date Added: Apr 2011
To cope with the increasingly diversifying services, QoS, and network architectures, network virtualization is a promising technology that enables the concurrent deployment of multiple network technologies on a shared network. Considering recent advances of wireless technologies, it is crucial to extend virtual networks to wireless domains. The authors refer to building such extended virtual networks as "End-to-end slicing". The key technical challenges for such extension are abstraction of heterogeneous wireless access networks for seamless connection with the wired virtual network and isolation of wireless resources such as radio frequencies, throughput, or name spaces for accommodating multiple virtual networks on a single wireless access network.