An SDN-based Seamless Convergence Approach of WLAN and LTE Networks
Due to the growing demands of various mobile services and large data traffic in wireless networks,WLAN has been deemed as an important complementary technology for offloading LTE network data.However,currently,WLAN and LTE networks are usually deployed independently,many important coordination and joint optimization cant be achieved,which may lead to low efficiency resource usage and bad user experience.To make a seamless convergence of these two networks still faces many challenges,among which seamless mobility is put forward as one of the most important issues.In this paper,an SDN-based convergence approach is proposed.SDN is introduced from both the access network and core network.Firstly,a virtualization based seamless handover in WLAN is introduced.Then a convergence architecture is proposed,and a handover workflow is designed to support the seamless mobility.Finally,we set up a test bed of the proposed architecture,including WLAN and LTE networks.Our experiment results demonstrate that service disruption delay is less than l00ms during handover,which means seamless convergence can be achieved in the proposed architecture.
Seamless Handover Convergence SDN WLAN LTE
Luhan Wang Zhaoming Lu Xiangming Wen Gang Cao Xiuyan Xia Lu Ma
Beijing University of Posts and Telecommunications Beijing,China
国际会议
重庆
英文
944-947
2016-03-20（万方平台首次上网日期，不代表论文的发表时间）