Ad Hoc Networks. 11th EAI International Conference, ADHOCNETS 2019, Queenstown, New Zealand, November 18–21, 2019, Proceedings

Research Article

The Effects of Non-line of Sight (NLOS) Channel on a User with Varying Device Orientations

  • @INPROCEEDINGS{10.1007/978-3-030-37262-0_20,
        author={Shakir Ullah and Saeed Rehman and Peter Chong},
        title={The Effects of Non-line of Sight (NLOS) Channel on a User with Varying Device Orientations},
        proceedings={Ad Hoc Networks. 11th EAI International Conference, ADHOCNETS 2019, Queenstown, New Zealand, November 18--21, 2019, Proceedings},
        proceedings_a={ADHOCNETS},
        year={2020},
        month={1},
        keywords={VLC NLOS VLC channel Mobile VLC},
        doi={10.1007/978-3-030-37262-0_20}
    }
    
  • Shakir Ullah
    Saeed Rehman
    Peter Chong
    Year: 2020
    The Effects of Non-line of Sight (NLOS) Channel on a User with Varying Device Orientations
    ADHOCNETS
    Springer
    DOI: 10.1007/978-3-030-37262-0_20
Shakir Ullah1,*, Saeed Rehman1,*, Peter Chong1,*
  • 1: Auckland University of Technology
*Contact email: shakir.ullah@aut.ac.nz, saeed.rehman@aut.ac.nz, peter.chong@aut.ac.nz

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.