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Optimal Placement of Heterogeneous Wireless Nodes in LTE/WiFi Integrated Networks

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  • Elmosilhy, Noha A.
  • Abd El-Haleem, Ahmed M.
  • Elmesalawy, Mahmoud M.

Abstract

Small cell deployment is considered one of solutions to increase capacity and improve the coverage to meet the growing of mobile data traffic. LTE-Wi-Fi Aggregation (LWA) is Heterogeneous based which enables an aggregation between LTE small cells and Wi-Fi Access Points (AP) at radio network level. In this work, we investigate the problems of determining the optimal placement of different types of Heterogeneous wireless small nodes that will be deployed to cover a hotspot zone. The placement is optimized with the objective of (i) Maximizing the total system capacity while considering the minimum Signal-to-Interferenceplus-Noise Ratio (SINR) constrain (ii) choosing the optimal number of wireless nodes which guarantee the coverage. The objective function are formulated as Mixed Integer Non-Linear Programming (MINLP) problem and solved using the genetic algorithm. The proposed optimal deployment is compared to uniform distribution placement and showed a significant increase in system throughput.

Suggested Citation

  • Elmosilhy, Noha A. & Abd El-Haleem, Ahmed M. & Elmesalawy, Mahmoud M., 2019. "Optimal Placement of Heterogeneous Wireless Nodes in LTE/WiFi Integrated Networks," 2nd Europe – Middle East – North African Regional ITS Conference, Aswan 2019: Leveraging Technologies For Growth 201747, International Telecommunications Society (ITS).
    • Handle: RePEc:zbw:itsm19:201747
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    Keywords

    Small cell deployment; HetNets; LWA; Genetic Algorithms;
    All these keywords.

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