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Reliability and Mobility Load Balancing in Next Generation Self-organized Networks: Using Stochastic Learning Automata

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Abstract

Self-organizing networking (SON) is an automation technology designed to make the planning, configuration, management, optimization and healing of mobile radio access networks simpler and faster. Most current self-organization networking functions apply rule-based recommended systems to control network resources which seem too complicated and time-consuming to design in practical conditions. This research proposes a cognitive cellular network empowered by an efficient self-organization networking approach which enables SON functions to separately learn and find the best configuration setting. An effective learning approach is proposed for the functions of the cognitive cellular network, which exhibits how the framework is mapped to SON functions. One of the main functions applied in this framework is mobility load balancing. In this paper, a novel Stochastic Learning Automata has been suggested as the load balancing function in which approximately the same quality level is provided for each subscriber. This framework can also be effectively extended to cloud-based systems, where adaptive approaches are needed due to unpredictability of total accessible resources, considering cooperative nature of cloud environments. The results demonstrate that the function of mobility robustness optimization not only learns to optimize HO performance, but also it learns how to distribute excess load throughout the network. The experimental results demonstrate that the proposed scheme minimizes the number of unsatisfied subscribers (Nus) by moving some of the edge users served by overloaded cells towards one or more adjacent target cells. This solution can also guarantee a more balanced network using cell load sharing approach in addition to increase cell throughput outperform the current schemes.

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Authors and Affiliations

  1. Department of Communications Technology, ICT Research Institute (ITRC), Tehran, Iran

    Amin Mohajer

  2. Department of Network Security and Information Technology, ICT Research Institute (ITRC), Tehran, Iran

    Maryam Bavaghar & Hamid Farrokhi

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  1. Amin Mohajer
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  2. Maryam Bavaghar
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  3. Hamid Farrokhi
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Correspondence to Hamid Farrokhi.

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Mohajer, A., Bavaghar, M. & Farrokhi, H. Reliability and Mobility Load Balancing in Next Generation Self-organized Networks: Using Stochastic Learning Automata. Wireless Pers Commun 114, 2389–2415 (2020). https://doi.org/10.1007/s11277-020-07481-1

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