Self-Optimization of Low Coverage and High Interference in Real 3G/4G Radio Access Networks

This paper presents a new single cell multi-objectiveoptimization algorithm. The objective is to optimize areas oflow coverage and high interference simultaneously, through theadjustment of the antenna tilts and/or antenna orientation. Theprocess is achieved using a specific implementation of a Part...

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Bibliographic Details
Main Author: Sousa, Marco (author)
Other Authors: Martins, Andre (author), Vieira, Pedro (author)
Format: article
Language:eng
Published: 2018
Subjects:
Online Access:https://doi.org/10.34629/ipl.isel.i-ETC.39
Country:Portugal
Oai:oai:i-ETC.journals.isel.pt:article/39
Description
Summary:This paper presents a new single cell multi-objectiveoptimization algorithm. The objective is to optimize areas oflow coverage and high interference simultaneously, through theadjustment of the antenna tilts and/or antenna orientation. Theprocess is achieved using a specific implementation of a ParticleSwarm Optimization (PSO) algorithm. Both the detection ofsub-optimal performance areas and its subsequent optimizationare supported by Drive Test (DT) data and network topologyinformation. The antenna optimization algorithm was tested withreal data in 3rd Generation (3G)/4th Generation (4G) networks.In this work, a 3G urban scenario is highlighted, achieving anaverage optimization gain of 78%.