Key technologies for SON in next generation radio access networks

• Main Authors: Xin Su, Jie Zeng, Chiyang Xiao
• Format: Conference Proceeding
• Language: English
• Subjects: Antennas; automated configuration; capacity and coverage optimization; cell outage detection and compensation; centralized greedy selecting; centralized simulated annealing; Interference; Long Term Evolution; Next generation networking; Radio access networks; Self-Organizing Network; Simulated annealing
• ISSN: 1095-2055; 2637-9430
• DOI: 10.1109/ICCCN.2014.6911745

The aim of SON (Self-Organizing Network) is to realize the autonomic function of the wireless network by self-configuration, self-optimization and self-healing, which reduces the human intervention and improves the user experience. Self-configuration is a process where newly deployed eNodeB are configured by automatic installation procedures to get the necessary basic configuration for system operation. Self-optimization is a process that continuously monitors an environment and automatically optimizes various parameters when the environment changes. Self-healing is a process that detects and localizes failures, then fixes the problems automatically. This paper gives a comprehensive introduction to the SON functionalities and outlines the framework of self-configuration, self-optimization and self-healing. Some concrete algorithms are proposed for self-optimization and self-healing, which include capacity and coverage optimization and cell outage detection and compensation respectively. Simulation results in various scenarios are provided to evaluate the performance of the proposed algorithms.