Mobility-aware QoS assurance in software-defined radio access networks: An analytical study

Abstract

Software-defined networking (SDN) has gained a tremendous attention in the recent years, both in academia and industry. This revolutionary networking paradigm is an attempt to bring the advances in computer science and software engineering into the information and communications technology (ICT) domain. The aim of these efforts is to pave the way for completely programmable networks and control-data plane separation. Recent studies on feasibility and applicability of SDN concepts in cellular networks show very promising results and this trend will most likely continue in near future. In this work, we study the benefits of SDN on the radio resource management (RRM) of future-generation cellular networks. Our considered cellular network architecture is in line with the recently proposed Long-Term Evolution (LTE) Release 12 concepts, such as controldata plane split, heterogeneous networks (HetNets) environment, and network densification through deployment of small cells. In particular, the aim of our RRM scheme is to enable the macro base station (BS) to efficiently allocate radio resources for small cell BSs in order to assure quality-of-service (QoS) of moving users/vehicles during handoffs. We develop an approximate, but very time-and space-efficient algorithm for radio resource allocation within a HetNet. Experiments on commodity hardware show algorithm running times in the order of a few seconds, thus making it suitable even in cases of fast moving users/vehicles. We also confirm a good accuracy of our proposed algorithm by means of computer simulations.

Ontological Model for Cohesive Smart Health Services Management

“…Mobile edge computing (MEC) is an advanced architecture that uses cloud computing and mobile networking specifically for more minor non-functionality applications [9]. Software-defined networking (SDN) is a development groundwater model for network-driven programming, ensuring broad network flexibility and significantly saving, which provides overall costs.…”

Efficient radio resource allocation in SDN/NFV based mobile cellular networks under the complete sharing policy

“…On the other hand, when schemes based on the code division multiple access are used, the definition of the RU must take into account the multiple access interference [32]. To this end, the notions of the cell load and load factor has been used [33,34]. In this work, we consider the LTE orthogonal FDMA (OFDMA) scheme.…”

A software-defined architecture for next-generation cellular networks

“…This also enables native and elegant incorporation of distributed mobility management schemes [32]. Furthermore, SDN-assisted mobility management can efficiently support even fast moving users/vehicles assuring acceptable QoE [33].…”