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Mobile Information Systems
Volume 2016 (2016), Article ID 3489193, 10 pages
http://dx.doi.org/10.1155/2016/3489193
Research Article

Multivariate Multiple Regression Models for a Big Data-Empowered SON Framework in Mobile Wireless Networks

School of Integrated Technology, Yonsei Institute of Convergence Technology, Yonsei University, Incheon, Republic of Korea

Received 22 April 2016; Accepted 26 July 2016

Academic Editor: Yeong M. Jang

Copyright © 2016 Yoonsu Shin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In the 5G era, the operational cost of mobile wireless networks will significantly increase. Further, massive network capacity and zero latency will be needed because everything will be connected to mobile networks. Thus, self-organizing networks (SON) are needed, which expedite automatic operation of mobile wireless networks, but have challenges to satisfy the 5G requirements. Therefore, researchers have proposed a framework to empower SON using big data. The recent framework of a big data-empowered SON analyzes the relationship between key performance indicators (KPIs) and related network parameters (NPs) using machine-learning tools, and it develops regression models using a Gaussian process with those parameters. The problem, however, is that the methods of finding the NPs related to the KPIs differ individually. Moreover, the Gaussian process regression model cannot determine the relationship between a KPI and its various related NPs. In this paper, to solve these problems, we proposed multivariate multiple regression models to determine the relationship between various KPIs and NPs. If we assume one KPI and multiple NPs as one set, the proposed models help us process multiple sets at one time. Also, we can find out whether some KPIs are conflicting or not. We implement the proposed models using MapReduce.