Traffic offloading techniques for 5G cellular: a three-tiered SDN architecture

Abstract

There is an exponential growth in the Internet traffic and the Internet access from mobile users due to high traffic demands at core networks. The current core network capacity limits have become a major issue. Therefore, 5G will demand cellular networks with ultra low delay, high throughput and low congestion at the core network. To cope with aforementioned problems traffic at the frontline of the cellular networks are offloaded with improved mobility management for mobile users in such dense networks, which are called DenseNets by using User Rate-Perceived (URP) algorithm. Local IP Access (LIPA) and Selective IP Traffic Offloading (SIPTO) are currently used as data offloading techniques at the core network. In this paper, we propose two novel data offloading mechanisms: Femtocell IP Access (FIPA) and Selective Local Controller Traffic Offload (SLCTO) to offload traffic at the edge of the cellular network without passing through cellular core networks with decoupled control, as well as seamless handoff using URP algorithm. Also, we propose a Terrorism Prevention Control System (TPCS) to detect terrorist activities. These proposals such as FIPA, SLCTO, and URP for 3-Tiered SDN architecture achieve low delay, high throughput, and low cost over other data offloading technologies.