Mobility management with caching policy over SDN architecture

摘要

Next step of mobile is coming with 5G architecture where Software Defined Networking (SDN) will play a key role. Beyond the centralization of the control that alleviates the data forwarding task, because routing tables can be simply changed to reflect the mobile localization, we propose a new paradigm based on caching function to improve the quality of transfer during handover. Caching policy cooperates with SDN controller for automatic buffering of the data during handover. This paper also studies two caching policies that are compared through a performance analysis regarding the quality of transfer for the user and for the operator.