| In 2020 or in the future, 5G network needs to meet all kinds of needs of consumers in living, working, entertaining and traffic, which makes the researches about the technology of 5 G network a most active hotspot.SDN (Software Defined Networking) provides us with a method to split the data plane from the control plane, and this makes it possible for the network to work more efficiently. Especially, it is meaningful for the development of 5G network.Considering the 5G architecture and security, this paper focuses on the research about SDN-based 5G network, combined with the SDN technology and research about 5G.Firstly, this paper studies and discusses about the technology about SDN-based 5G network in the reference documentations, including the security architecture and technology.Next, this paper designs and achieves the POF-based 5G-SDN architecture. Even though the OpenFlow 1.5 version starts to support GTP,the number of the protocols that OpenFlow supports is increasing, which makes the OpenFlow more complicated. Besides, there are still a lot of flexibility defects about it. So, this paper carries out a plane about POF-based 5G-SDN controller, by making use of the POF(Protocol Obvious Forwarding) controller. At the same time, our add-on function development makes it able to communicate with SGW. After that, this paper establishes the presentation system of the POF-based 5G-SDN architecture.At last, for the problem of SDN-based 5G security architecture home and abroad, which are the system redundancy resulting from the patched solution and the tight coupling between security domain and network domain, this paper designs and achieves a brand new SDN-based 5G security architecture, achieving the loose coupling between security domain and network domain, keeping the SDN concise architecture and making the security deployment easier, more organized and more systematic. And two applications are developed and deployed under this architecture to prove the feasibility of our architecture. |
PDF Full Text Request