A software-defined architecture for next-generation cellular networks

Vassilios G. Vassilakis, Ioannis D. Moscholios, Bander A. Alzahrani, Michael D. Logothetis
2016 2016 IEEE International Conference on Communications (ICC)  
In the recent years, mobile cellular networks are undergoing fundamental changes and many established concepts are being revisited. New emerging paradigms, such as Software-Defined Networking (SDN), Mobile Cloud Computing (MCC), Network Function Virtualization (NFV), Internet of Things (IoT), and Mobile Social Networking (MSN), bring challenges in the design of cellular networks architectures. Current Long-Term Evolution (LTE) networks are not able to accommodate these new trends in a scalable
more » ... nd efficient way. In this paper, first we discuss the limitations of the current LTE architecture. Second, driven by the new communication needs and by the advances in aforementioned areas, we propose a new architecture for nextgeneration cellular networks. Some of its characteristics include support for distributed content routing, Heterogeneous Networks (HetNets) and multiple Radio Access Technologies (RATs). Finally, we present simulation results which show that significant backhaul traffic savings can be achieved by implementing caching and routing functions at the network edge. The OpenRAN architecture [8] adopts a software-defined RAN approach, achieved via radio network virtualization. OpenRAN comprises the following parts: a) wireless spectrum resource pool, b) cloud computing resource pool, and c) SDN
doi:10.1109/icc.2016.7511018 dblp:conf/icc/VassilakisMAL16 fatcat:nm2vogjhkvcolljvm2xt3rroly