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Dynamic network slice resources reconfiguration in heterogeneous mobility environments
Author(s) -
Meneses Flávio,
Silva Rui,
Corujo Daniel,
Neto Augusto,
Aguiar Rui L.
Publication year - 2019
Publication title -
internet technology letters
Language(s) - English
Resource type - Journals
ISSN - 2476-1508
DOI - 10.1002/itl2.107
Subject(s) - computer science , handover , control reconfiguration , testbed , provisioning , computer network , user equipment , upstream (networking) , cloud computing , virtualization , slicing , context (archaeology) , distributed computing , scheme (mathematics) , software defined networking , embedded system , operating system , paleontology , mathematical analysis , mathematics , base station , world wide web , biology
This paper proposes a framework that optimizes network slicing provisioning in over‐the‐top (OTT) scenarios, by reducing occupied resources of slices from where the User Equipment (UE) handovers from. To achieve this, the framework leverages an existing Software Defined Networking (SDN)‐based UE virtualization scheme, which allows to instantiate in the cloud a representation of the physical device and its current connectivity context. This scheme was extended with the ability to anchor the UE's datapath and mask the underlying slices in a single end‐to‐end slice, allowing handover mechanisms between slices to become transparent to involved endpoints. This framework was implemented and evaluated in an experimental testbed where the UE moves between Wi‐Fi and long‐term evolution (LTE) slices, with results showing that upstream and downstream throughput is dynamically adapted to the UE requirements prior to the handover.