Efficient Resource Allocation Scheme in Multi-User LiFi Networks Based on Angle Oriented Transceiver

Selmy, Hossam A. I; Elsayed, Hany M

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Efficient Resource Allocation Scheme in Multi-User LiFi Networks Based on Angle Oriented Transceiver

Selmy, Hossam A. I; Elsayed, Hany M

Full Text link: https://qrgo.page.link/g1ziU

Date issued: 07/01/2021

Scientific Journal Rankings: Click Here

Doi: https://doi.org/10.23919/ONDM51796.2021.9492348

Publisher: Institute of Electrical and Electronics Engineers Inc.

Series Info: 25th International Conference on Optical Network Design and Modelling, ONDM 202128 June 2021 Article number 949234825th International Conference on Optical Network Design and Modelling, ONDM;ONDM 202128 JunONDM 2021, Gothenburg, 28 June 2021 - 1 July 2021, 170655

Type: Article

Keywords: Fiber optic networks , Genetic algorithms , Light emitting diodes , Multiobjective optimization; , Optimal systems , Signal to noise ratio , Conventional systems , Efficient resource allocation , Inter-user interference , Optimal solutions , Received signals , Resource allocation problem , Sub-optimal method , Suboptimal solution , heading

Abstract:

In this paper, an efficient resource allocation scheme in multi-user LiFi networks is proposed using the angle oriented (AO) technology at the receiver and transmitter sides. To cope with the inter-symbol and inter-user interferences and to further enhance the fairness between the users, we efficiently allocate the resources by choosing the most suitable LED for each AO transmitter (i.e., user) to be ON. The none-selected LEDs are switched OFF to maximize the received signal-to-interference-plus-noise-ratios (SINRs). The resource allocation problem under consideration is a discrete non-convex one with multi-objective optimizations. To obtain the optimal solution, the exhaustive-search (ES) method is used while to reduce the complexity, a suboptimal method is proposed using genetic algorithm (GA) scheme. Our results confirm the accuracy of the proposed sub-optimal solution where less than 0.5 dB difference in the SINR value is noticed. Also, the proposed LiFi system with AO technology shows a superior performance compared to the conventional systems with single transmitter (ST) scheme. © 2021 IFIP TC6 WG6.10.