Optimizing Wireless Connectivity: A Deep Neural Network-Based Handover Approach for Hybrid LiFi and WiFi Networks

Author:

Khan Mohammad Usman Ali1,Babar Mohammad Inayatullah1,Rehman Saeed Ur2ORCID,Komosny Dan3,Chong Peter Han Joo4ORCID

Affiliation:

1. Department of Electrical Engineering, University of Engineering and Technology, Peshawar 25120, Pakistan

2. College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia

3. Department of Telecommunications, Brno University of Technology, 601 90 Brno, Czech Republic

4. Department of Electrical and Electronic Engineering, Auckland University of Technology (AUT), Auckland 1010, New Zealand

Abstract

A Hybrid LiFi and WiFi network (HLWNet) integrates the rapid data transmission capabilities of Light Fidelity (LiFi) with the extensive connectivity provided by Wireless Fidelity (WiFi), resulting in significant benefits for wireless data transmissions in the designated area. However, the challenge of decision-making during the handover process in HLWNet is made more complex due to the specific characteristics of electromagnetic signals’ line-of-sight transmission, resulting in a greater level of intricacy compared to previous heterogeneous networks. This research work addresses the problem of handover decisions in the Hybrid LiFi and WiFi networks and treats it as a binary classification problem. Consequently, it proposes a handover method based on a deep neural network (DNN). The comprehensive handover scheme incorporates two sets of neural networks (ANN and DNN) that utilize input factors such as channel quality and the mobility of users to enable informed decisions during handovers. Following training with labeled datasets, the neural-network-based handover approach achieves an accuracy rate exceeding 95%. A comparative analysis of the proposed scheme against the benchmark reveals that the proposed method considerably increases user throughput by approximately 18.58% to 38.5% while reducing the handover rate by approximately 55.21% to 67.15% compared to the benchmark artificial neural network (ANN); moreover, the proposed method demonstrates robustness in the face of variations in user mobility and channel conditions.

Publisher

MDPI AG

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