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Use of a fuzzy logic scheduler to improve quality of service on cellular networks

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Abstract

An efficient and fair packet scheduler is very important to guaranty the cellular network quality of service (QoS). In general, classic packet schedulers follow static rules based on priorities. Unfortunately, static rules may cause unfair resource distribution. We present and analyze FuzSy, a cellular network packet scheduler based on the quality of service and fuzzy logic. Instead of following static prioritization rules, it prioritizes traffic classes that have a higher risk of not reaching QoS requirements. Its dynamic priority changes any traffic class in case of performance decrease risk. Based on network metadata, FuzSy uses fuzzy logic to decide about prioritization. We conducted simulations in a 4G network. FuzSy achieved QoS requirements and network fairness for all classes. One of FuzSy’s significant advantages is the fairness guaranty that solutions contained in other works do not garantee. We show that FuzSy can be used in any kind of cellular network because it is straightforward to have its parameters adjusted. In the future 5G networks, for example, FuzSy may be helpful due to a large number of heterogeneous connected devices and different kinds of applications. The FuzSy scheduler use may achieve the QoS, and the fairness guarantees since its concept is independent of technology, and it is usable in any kind of network.

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Authors and Affiliations

  1. Institute of Mathematical Sciences and Informatics at PUC Minas, Belo Horizonte, MG, Brazil

    Fabrício R. de Souza, Fátima Duarte-Figueiredo & Magali R. Gouvêa Meireles

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  1. Fabrício R. de Souza
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  2. Fátima Duarte-Figueiredo
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  3. Magali R. Gouvêa Meireles
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Contributions

All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by FRS and FD-F. FRS wrote the first draft of the manuscript, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Fabrício R. de Souza.

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The authors would like to thank the Pontifical Catholic University of Minas Gerais (PUC Minas), the Coordination for the Improvement of Higher Education Personnel (CAPES) and the Microsoft Azure for Research Program for the grants and incentives that have turned possible this work development (Grant No. X88SEV2L03HE)

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de Souza, F.R., Duarte-Figueiredo, F. & Gouvêa Meireles, M.R. Use of a fuzzy logic scheduler to improve quality of service on cellular networks. Telecommun Syst 74, 451–465 (2020). https://doi.org/10.1007/s11235-020-00668-8

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