A Self-Tuning Algorithm for Optimal QoE-Driven Traffic Steering in LTE
Due to the wide diversity of services in mobile networks, cellular operators have changed their focus from Quality of Service (QoS) to Quality of Experience (QoE). To manage this change, Self-Organizing Networks (SON) techniques have been developed to automate network management, with traffic steeri...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9177008/ |
| _version_ | 1818608526738587648 |
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| author | Maria Luisa Mari Altozano Matias Toril Salvador Luna-Ramirez Carolina Gijon |
| author_facet | Maria Luisa Mari Altozano Matias Toril Salvador Luna-Ramirez Carolina Gijon |
| author_sort | Maria Luisa Mari Altozano |
| collection | DOAJ |
| description | Due to the wide diversity of services in mobile networks, cellular operators have changed their focus from Quality of Service (QoS) to Quality of Experience (QoE). To manage this change, Self-Organizing Networks (SON) techniques have been developed to automate network management, with traffic steering as a key use case. Traditionally, traffic steering aims to balance traffic volume or load among adjacent cells. Although more advanced schemes have been devised to balance QoE among cells, these do not guarantee that the overall system QoE is improved. In this work, a novel self-tuning algorithm for parameters in a classical mobility load balancing scheme is proposed to steer traffic among adjacent cells in a Long-Term Evolution (LTE) network driven by QoE criteria. Unlike previous approaches, based on heuristic rules, the proposed algorithm takes a gradient ascent approach to ensure that parameter changes always improve the overall system QoE. For this purpose, the impact of parameter changes on system QoE is estimated with an analytical network performance model that can be adjusted with statistics taken from the real network. The proposed algorithm is tested in a system-level simulator implementing a realistic LTE scenario. Results show that the method outperforms classical load and QoE mobility load balancing schemes. |
| first_indexed | 2024-12-16T14:44:03Z |
| format | Article |
| id | doaj.art-fe24d400b6d549889f03cacc52549c43 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-16T14:44:03Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-fe24d400b6d549889f03cacc52549c432022-12-21T22:27:50ZengIEEEIEEE Access2169-35362020-01-01815670715671710.1109/ACCESS.2020.30192819177008A Self-Tuning Algorithm for Optimal QoE-Driven Traffic Steering in LTEMaria Luisa Mari Altozano0https://orcid.org/0000-0003-4880-6225Matias Toril1https://orcid.org/0000-0003-3859-2622Salvador Luna-Ramirez2https://orcid.org/0000-0003-0171-5721Carolina Gijon3https://orcid.org/0000-0001-6204-0604Department of Communication Engineering, University of Málaga, Málaga, SpainDepartment of Communication Engineering, University of Málaga, Málaga, SpainDepartment of Communication Engineering, University of Málaga, Málaga, SpainDepartment of Communication Engineering, University of Málaga, Málaga, SpainDue to the wide diversity of services in mobile networks, cellular operators have changed their focus from Quality of Service (QoS) to Quality of Experience (QoE). To manage this change, Self-Organizing Networks (SON) techniques have been developed to automate network management, with traffic steering as a key use case. Traditionally, traffic steering aims to balance traffic volume or load among adjacent cells. Although more advanced schemes have been devised to balance QoE among cells, these do not guarantee that the overall system QoE is improved. In this work, a novel self-tuning algorithm for parameters in a classical mobility load balancing scheme is proposed to steer traffic among adjacent cells in a Long-Term Evolution (LTE) network driven by QoE criteria. Unlike previous approaches, based on heuristic rules, the proposed algorithm takes a gradient ascent approach to ensure that parameter changes always improve the overall system QoE. For this purpose, the impact of parameter changes on system QoE is estimated with an analytical network performance model that can be adjusted with statistics taken from the real network. The proposed algorithm is tested in a system-level simulator implementing a realistic LTE scenario. Results show that the method outperforms classical load and QoE mobility load balancing schemes.https://ieeexplore.ieee.org/document/9177008/Long term evolution (LTE)self organizing network (SON)self-tuningquality of experience |
| spellingShingle | Maria Luisa Mari Altozano Matias Toril Salvador Luna-Ramirez Carolina Gijon A Self-Tuning Algorithm for Optimal QoE-Driven Traffic Steering in LTE IEEE Access Long term evolution (LTE) self organizing network (SON) self-tuning quality of experience |
| title | A Self-Tuning Algorithm for Optimal QoE-Driven Traffic Steering in LTE |
| title_full | A Self-Tuning Algorithm for Optimal QoE-Driven Traffic Steering in LTE |
| title_fullStr | A Self-Tuning Algorithm for Optimal QoE-Driven Traffic Steering in LTE |
| title_full_unstemmed | A Self-Tuning Algorithm for Optimal QoE-Driven Traffic Steering in LTE |
| title_short | A Self-Tuning Algorithm for Optimal QoE-Driven Traffic Steering in LTE |
| title_sort | self tuning algorithm for optimal qoe driven traffic steering in lte |
| topic | Long term evolution (LTE) self organizing network (SON) self-tuning quality of experience |
| url | https://ieeexplore.ieee.org/document/9177008/ |
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