SDN-Based Data Offloading for 5G Mobile Networks  

作　　者：Mojdeh Amani Toktam Mahmoodi Mallikarjun Tatipamula Hamid Aghvami 

机构地区：[1]King’s College London,The Strand,London,WC2R 2LS,UK [2]F5 Networks,San Jose,CA 95134,USA

出　　处：《ZTE Communications》2014年第2期34-40,共7页中兴通讯技术（英文版）

摘　　要：The rapid growth of 3G/4G enabled devices such as smartphones and tablets in large numbers has created increased demand for mobile data services. Wi-Fi offloading helps satisfy the requirements of data-rich applications and terminals with improved multi- media. Wi-Fi is an essential approach to alleviating mobile data traffic load on a cellular network because it provides extra capacity and improves overall performance. In this paper, we propose an integrated LTE/Wi-Fi architecture with software-defined networking （SDN） abstraction in mobile baekhaul and enhanced components that facilitate the move towards next-generation 5G mo- bile networks. Our proposed architecture enables programmable offloading policies that take into account real-time network conditions as well as the status of devices and applications. This mechanism improves overall network performance by deriving real- time policies and steering traffic between cellular and Wi-Fi networks more efficiently.The rapid growth of 3G/4G enabled devices such as smartphones and tablets in large numbers has created increased demand for mobile data services. Wi-Fi offloading helps satisfy the requirements of data-rich applications and terminals with improved multi- media. Wi-Fi is an essential approach to alleviating mobile data traffic load on a cellular network because it provides extra capacity and improves overall performance. In this paper, we propose an integrated LTE/Wi-Fi architecture with software-defined networking （SDN） abstraction in mobile baekhaul and enhanced components that facilitate the move towards next-generation 5G mo- bile networks. Our proposed architecture enables programmable offloading policies that take into account real-time network conditions as well as the status of devices and applications. This mechanism improves overall network performance by deriving real- time policies and steering traffic between cellular and Wi-Fi networks more efficiently.

关 键 词：mobile data offloading LTE/Wi-Fi interworking policy derivation network selection software-defined networking dynamic policies 5G mobile networks 

分 类 号：TN929.5[电子电信—通信与信息系统] F273.7[电子电信—信息与通信工程]