@misc{10481/68202,
year = {2016},
url = {http://hdl.handle.net/10481/68202},
abstract = {Requirements for 5G mobile networks includes a
higher flexibility, scalability, cost effectiveness and energy efficiency.
Towards these goals, Software Defined Networking (SDN)
and Network Functions Virtualization have been adopted in
recent proposals for future mobile networks architectures because
they are considered critical technologies for 5G. In this paper,
we propose an X2-based handover implementation in an SDNbased
and partially virtualized LTE architecture. Moreover, the
architecture considered operates at link level, which provides
lower latency and higher scalability. In our implementation, we
use MPLS tunnels for user plane instead of GTP-U protocol,
which introduces a significant overhead. To verify the correct
operation of our system, we developed a simulator. It implements
the messages exchange and processing of the primary network
entities. Using this tool we measured the handover preparation
and completion times, whose estimated values were roughly 6.94
ms and 8.31 ms, respectively, according to our experimental
setup. These latencies meet the expected requirements concerning
control plane delay budgets for 5G networks.},
organization = {This work is partially supported by the Spanish Ministry
of Economy and Competitiveness and the European Regional Development
Fund (project TIN2013-46223-P)},
organization = {Spanish Ministry of Education,
Culture and Sport (FPU grant 13/04833)},
publisher = {IEEE},
keywords = {Handover},
keywords = {5G},
keywords = {SDN},
keywords = {NFV},
keywords = {virtualized LTE/EPC},
title = {Handover Implementation in a 5G SDN-based Mobile Network Architecture},
doi = {10.1109/PIMRC.2016.7794936},
author = {Prados Garzón, Jonathan and Adamuz Hinojosa, Óscar Ramón and Ameigeiras Gutiérrez, Pablo José and Ramos Muñoz, Juan José and Andres-Maldonado, Pilar and López Soler, Juan Manuel},
}