Efficient analytical calculation of non-line-of-sight channel impulse response in visible light communications

Chen, Cheng and Basnayaka, Dushyantha A. and Wu, Xiping and Haas, Harald (2018) Efficient analytical calculation of non-line-of-sight channel impulse response in visible light communications. Journal of Lightwave Technology, 36 (9). pp. 1666-1682. 8234545. ISSN 1558-2213 (https://doi.org/10.1109/JLT.2017.2786459)

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Abstract

This study provides an analytical method to calculate the non-line-of-sight (NLoS) channel impulse response (CIR) in visible light communication (VLC) systems based on intensity modulation and direct detection (IM/DD). In this method, the NLoS channel is decomposed into a number of components with different propagation categories. These propagation categories are defined according to the number of reflections and the reflective surfaces that the light undergoes. The CIR corresponding to each light propagation category is analysed and the overall NLoS CIR is approximated by the combination of the calculated CIR components in different propagation categories. The proposed method has the major advantage of offering accurate results with very low computational complexity. Typically, a NLoS CIR with a time resolution of 0.1 ns can be generated within a second in MATLAB. Furthermore, the analytical results derived herein could be used as an analytical tool for the VLC channel characterisation study in future research.

  • Item type:Article
    ID code:82437
    Dates:
    Date
    Event
    1 May 2018
    Published
    22 December 2017
    Published Online
    2 December 2017
    Accepted
    Notes:© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:UNSPECIFIED
    Depositing user: Pure Administrator
    Date deposited:22 Sep 2022 13:19
    Last modified:11 Nov 2024 13:36
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/82437
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