Abstract
The recent developments in unmanned aerial vehicles (UAVs) and indoor hybrid LiFi–WiFi networks (HLWNs) present a significant opportunity for creating low-cost, power-efficient, reliable, flexible, and ad-hoc HLWN-enabled indoor flying networks (IFNs). However, to efficiently operate and practically realize indoor HLWN, a unified physical layer (UniPHY) is indispensable for joint communication (control and data transfer) and sensing (e.g., localization). A UniPHY structure reduces costs and increases overall flexibility for HLWN-based IFNs. While conventional block-based wireless transceivers independently designed for LiFi and WiFi offer mediocre performance for a composite UniPHY waveform, a machine learning-based end-to-end learning framework for UniPHY can improve overall error performance and reduce the complexity of UAV transceiver hardware. Therefore, this paper proposes a novel generic end-to-end learning framework for a UniPHY system that can efficiently enable HLWN. The performance of the proposed learning framework based on deep neural networks (DNNs) and convolutional neural networks (CNNs) is investigated. Additionally, we assess the computational complexity of the proposed DNN and CNN learning frameworks. The results demonstrate that the performance of DNNs and CNNs varies depending on the considered channel model. Specifically, the analysis reveals that CNNs outperform traditional DNNs in WiFi (Rayleigh fading-based) channels. In contrast, traditional DNNs perform better than CNNs in LiFi (additive white Gaussian noise (AWGN)-based) channels.
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Acknowledgements
This work was supported by the ASPIRE Award for Research Excellence Program 2020 (Abu Dhabi, UAE) under Grant AARE20-161.
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This work was supported by the ASPIRE Award for Research Excellence Program 2020, Abu Dhabi, UAE, under Grant Number AARE20-161.
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HBS, RA, DNA, HE, and MA contributed to conceptualization; HBS, HE, and DNA contributed to methodology; RA, DNA, and HE contributed to formal analysis and investigation; RA and DNA contributed to writing—original draft preparation; HBS, MA, and HE contributed to writing—review and editing.
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Anwar, D.N., Ahmad, R., Bany Salameh, H. et al. Performance analysis of neural network-based unified physical layer for indoor hybrid LiFi–WiFi flying networks. Neural Comput & Applic 35, 24179–24189 (2023). https://doi.org/10.1007/s00521-023-09017-7
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DOI: https://doi.org/10.1007/s00521-023-09017-7