Improved angle diversity non-imaging receiver with a help of mirror in indoor MIMO-VLC systems

Ki-Hong, Park; Alouini, Mohamed‐Slim

doi:10.1109/wcnc.2018.8377256

Cited by 4 publications

(1 citation statement)

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“…In these investigations, the benefits of using ADRs in VLC systems as well as the general design of ADRs are analyzed to optimize the communication capacity. Among the general schemes of ADRs analyzed are those of pyramidal and hemispherical geometry along with their mathematical models, optimized location of the PDs, use of signal selection and combination schemes, and general tests in indoor VLC systems [38][39][40][41]. Despite growing research on ADRs, the existing benchmark schemes do not optimize the structure of ADRs, and its performance is not fully explored.…”

Section: Angle Diversity Receivers In Vlc Systemsmentioning

confidence: 99%

Interference Mitigation for Visible Light Communications in Underground Mines Using Angle Diversity Receivers

Játiva

Cañizares

Azurdia-Meza

et al. 2020

Sensors

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This paper proposes two solutions based on angle diversity receivers (ADRs) to mitigate inter-cell interference (ICI) in underground mining visible light communication (VLC) systems, one of them is a novel approach. A realistic VLC system based on two underground mining scenarios, termed as mining roadway and mine working face, is developed and modeled. A channel model based on the direct component in line-of-sight (LoS) and reflections of non-line-of-sight (NLoS) links is considered, as well as thermal and shot noises. The design and mathematical models of a pyramid distribution and a new hemi-dodecahedral distribution are addressed in detail. The performances of these approaches, accompanied by signal combining schemes, are evaluated with the baseline of a single photo-diode in reception. Results show that the minimum lighting standards established in both scenarios are met. As expected, the root-mean-square delay spread decreases as the distance between the transmitters and receivers increases. Furthermore, the hemi-dodecahedron ADR in conjunction with the maximum ratio combining (MRC) scheme, presents the best performance in the evaluated VLC system, with a maximum user data rate of 250 Mbps in mining roadway and 120 Mbps in mine working face, received energy per bit/noise power of 32 dB and 23 dB, respectively, when the bit error rate corresponds to 10 − 4 , and finally, values of 120 dB in mining roadway and 118 dB in mine working face for signal-to-interference-plus-noise ratio are observed in a cumulative distribution function.

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Section: Angle Diversity Receivers In Vlc Systemsmentioning

confidence: 99%