Space-Time Constellation for MU-MISO Dimmable Visible Light Communications

Li, Lin; Chen, Ru-Han; Zhang, Yanyu; Guo, Jia-Ning; Zhang, Jian

doi:10.1109/lcomm.2021.3072546

“…Therefore, the frequency non-stationarity caused by large bandwidths needs to be considered in the channel model. In indoor scenarios, the lighting system is usually a large LED array consisting of multiple LED lamps which can be used as multiple optical transmitters (Txs) [18], [19]. To address the co-channel interference, a generalized angle diversity receiver (ADR) structure is proposed in [20] and used at the receiver (Rx) side to reduce the signal to interference plus noise ratio (SINR).…”

Section: Introductionmentioning

confidence: 99%

A Novel 3D Non-Stationary Channel Model for 6G Indoor Visible Light Communication Systems

Zhu

¹

,

Wang

²

,

Huang

³

et al. 2022

IEEE Trans. Wireless Commun.

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The visible light communication (VLC) technology has attracted much attention in the research of the sixth generation (6G) communication systems. In this paper, a novel three dimensional (3D) space-time-frequency non-stationary geometrybased stochastic model (GBSM) is proposed for indoor VLC channels. The proposed VLC GBSM can capture unique indoor VLC channel characteristics such as the space-time-frequency non-stationarity caused by large light-emitting diode (LED) arrays in indoor scenarios, long travelling paths, and large bandwidths of visible light waves, respectively. In addition, the proposed model can support special radiation patterns of LEDs, 3D translational and rotational motions of the optical receiver (Rx), and can be applied to angle diversity receivers (ADRs). Key channel properties are simulated and analyzed, including the space-time-frequency correlation function (STFCF), received power, root mean square (RMS) delay spread, and path loss (PL). Simulation results verify the space-time-frequency nonstationarity in indoor VLC channels. In addition, the influence of light source radiation patterns, receiver rotations, and ADRs on channel characteristics have been investigated. Finally, the accuracy and practicality of the proposed model are validated by comparing the simulation result of channel 3dB bandwidth with the existing measurement data. The proposed channel model will play a supporting role in the design of future 6G VLC systems.

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Power-Efficient Constellations with Capacity Approximating Constraints for MISO VLC Systems

Jia,

Shu,

Li

et al. 2023

2023 IEEE 11th International Conference on Information, Communication and Networks (ICICN)

0

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A Novel 3D Non-Stationary Channel Model for 6G Indoor Visible Light Communication Systems

Zhu¹,

Wang²,

Huang³

et al. 2022

Preprint

0

View full text Add to dashboard Cite

The visible light communication (VLC) technology has attracted much attention in the research of the sixth generation (6G) communication systems. In this paper, a novel three dimensional (3D) space-time-frequency non-stationary geometrybased stochastic model (GBSM) is proposed for indoor VLC channels. The proposed VLC GBSM can capture unique indoor VLC channel characteristics such as the space-time-frequency non-stationarity caused by large light-emitting diode (LED) arrays in indoor scenarios, long travelling paths, and large bandwidths of visible light waves, respectively. In addition, the proposed model can support special radiation patterns of LEDs, 3D translational and rotational motions of the optical receiver (Rx), and can be applied to angle diversity receivers (ADRs). Key channel properties are simulated and analyzed, including the space-time-frequency correlation function (STFCF), received power, root mean square (RMS) delay spread, and path loss (PL). Simulation results verify the space-time-frequency nonstationarity in indoor VLC channels. In addition, the influence of light source radiation patterns, receiver rotations, and ADRs on channel characteristics have been investigated. Finally, the accuracy and practicality of the proposed model are validated by comparing the simulation result of channel 3dB bandwidth with the existing measurement data. The proposed channel model will play a supporting role in the design of future 6G VLC systems.

show abstract

Space-Time Constellation for MU-MISO Dimmable Visible Light Communications

Cited by 3 publications

References 16 publications

A Novel 3D Non-Stationary Channel Model for 6G Indoor Visible Light Communication Systems

A Novel 3D Non-Stationary Channel Model for 6G Indoor Visible Light Communication Systems

Power-Efficient Constellations with Capacity Approximating Constraints for MISO VLC Systems

A Novel 3D Non-Stationary Channel Model for 6G Indoor Visible Light Communication Systems

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