The maturity of OpenFlow standards and fast development
of SDN have made the concept of SDN widely
accepted by the mobile industry. For the advantages of
SDN such as programmability, abstraction, and openness,
we advocate that SDN can enhance security in wireless
mobile networks through novel design. Based on our investigation
of existing solutions, we highlight the key elements
and sketch out our design. As part of our on-going
work for the security enhancement framework, we believe
this study can shed light on how we use SDN to improve
network security and promote the adoption of SDN to
the future wireless mobile networks.