Abstract
Recently, there has been a growing interest in visible light communications (VLC) for indoor communication to meet the ever-increasing data demands. Most of the studies have considered the line-of-sight (LOS) channel for VLC communication. However, the LOS gain is constrained as the user moves away from the transmitter (Tx) or his device experiences orientation changes. It is observed in practice, the gain from reflections along the defused/NLOS channels can also contribute to optical gain. This research work, therefore, analytical model the NLOS channels and user’s device orientation and analyze its effect on the user’s SNR. For simulations, analytical models are integrated into ns3. Our results show that SNR slightly improves, which can be utilized to keep the communication alive during the high mobility scenario that could arise due to device orientation.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Turan, B., Narmanlioglu, O., Ergen, S.C., Uysal, M.: Physical layer implementation of standard compliant vehicular VLC. In: Vehicular Technology Conference (VTC-Fall) IEEE 84th, pp. 1–5. IEEE (2016)
Strinati, E., Barbarossa, S., Luis Gonzalez-Jimenez, J., Ktenas, D., Cassiau, N., Dehos, C.: 6G: The Next Frontier (2019)
Syed, J.N., Sharma, S.K., Wyne, S., Patwary, M., Asaduzzaman, M.: Quantum machine learning for 6G communication networks: State-of-the-Art and vision for the future, pp. 46317–46350 (2019)
Dong, Z., Shang, T., Gao, Y., Li, Q.: Study on VLC channel modeling under random shadowing. IEEE Photonics J. 9(6), 1–16 (2017)
Miramirkhani, F., Narmanlioglu, O., Uysal, M., Panayirci, E.: A mobile channel model for VLC and application to adaptive system design. IEEE Commun. Lett. 21(5), 1035–1038 (2017)
Rajbhandari, S., et al.: Neural network-based joint spatial and temporal equalization for MIMO-VLC system. IEEE Photonics Technol. Lett. 31(11), 821–824 (2019)
Amsdon, T., Sibley, M.J.: Theoretical concepts and matlab modelling of VLC based MIMO systems, University of Huddersfield (2013)
Soltani, M.D., Wu, X., Safari, M., Haas, H.: Access point selection in Li-Fi cellular networks with arbitrary receiver orientation. In: 2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), pp. 1–6 (2016)
Wang, J., et al.: Improvement of BER performance by tilting receiver plane for indoor visible light communications with input-dependent noise. In: 2017 IEEE International Conference on Communications (ICC), pp. 1–6 (2017)
Eroglu, Y., Yapici, Y., Guvenc, I.: Impact of random receiver orientation on visible light communications channel. IEEE Trans. Commun. 67(2), 1313–1325 (2017)
Dehghani Soltani, M., Andi Purwita, A., Tavakkolnia, I., Haas, H., Safari, M.: Impact of device orientation on error performance of LiFi systems. IEEE Access 7, 41690–41701 (2018)
Aldalbahi, A., et al.: Extending ns3 to simulate visible light communication at network-level. In: 2016 23rd International Conference on Telecommunications (ICT), pp. 1–6. IEEE (2016)
Ghassemlooy, Z., Popoola, W., Rajbhandari, S.: Optical Wireless Communications: System and Channel Modelling with MATLAB (2012)
Kahn, J.M., Barry, J.R.: Wireless infrared communication 85(2), 265–298 (1997)
Wu, X., Safari, M., Haas, H.: Access point selection for hybrid Li-Fi and Wi-Fi networks. IEEE Trans. Commun. 65(12), 5375–5385 (2017)
Huynh, D.Q.: Metrics for 3D rotations: Comparison and analysis. J. Math. Imaging Vis. 35(2), 155–164 (2009)
Dimitrov, S., Haas, H.: Principles of LED Light Communications: Towards Networked Li-Fi. Cambridge University Press, Cambridge (2015)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
About this paper
Cite this paper
Ullah, S., Rehman, S.U., Chong, P.H.J. (2019). The Effects of Non-line of Sight (NLOS) Channel on a User with Varying Device Orientations. In: Zheng, J., Li, C., Chong, P., Meng, W., Yan, F. (eds) Ad Hoc Networks. ADHOCNETS 2019. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 306. Springer, Cham. https://doi.org/10.1007/978-3-030-37262-0_20
Download citation
DOI: https://doi.org/10.1007/978-3-030-37262-0_20
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-37261-3
Online ISBN: 978-3-030-37262-0
eBook Packages: Computer ScienceComputer Science (R0)