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

Shakir Ullah, Saeed Ur Rehman, Peter Han Joo Chong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


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.

Original languageEnglish
Title of host publicationAd Hoc Networks - 11th EAI International Conference, ADHOCNETS 2019, Proceedings
EditorsJun Zheng, Cheng Li, Peter Han Joo Chong, Weixiao Meng, Feng Yan
Place of PublicationCham, Switzerland
Number of pages11
ISBN (Electronic)9783030372620
ISBN (Print)9783030372613
Publication statusPublished - 2019
Externally publishedYes
Event11th International Conference on Ad Hoc Networks, ADHOCNETS 2019 - Queenstown, New Zealand
Duration: 18 Nov 201921 Nov 2019

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume306 LNICST
ISSN (Print)1867-8211


Conference11th International Conference on Ad Hoc Networks, ADHOCNETS 2019
Country/TerritoryNew Zealand


  • Mobile VLC
  • NLOS
  • VLC
  • VLC channel


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