Distributed MIMO for Li-Fi: Channel Measurements, Ray Tracing and Throughput Analysis

Hossien B Eldeeb (1) , Sreelal Maravanchery Mana (2) , Volker Jungnickel (2) , Peter Hellwig (2) , Jonas Hilt (2) , Murat Uysal (1)

1 Özyeğin University
2 Fraunhofer HHI - Fraunhofer Institute for Telecommunications - Heinrich Hertz Institute

LiFi has been considered as a promising candidate for future wireless indoor networks. The IEEE P802.15.13 and P802.11bb standardization groups agreed upon channel models generated using the non-sequential ray tracing approach of OpticStudio. In this paper, in order to validate the channel modelling approach, at first 2 × 2 multiple-input multiple-output (MIMO) channel measurements are carried out over 200 MHz bandwidth using a channel sounder. The experimental scenario is also modeled in 3D by applying ray tracing. The obtained results indicate good agreement between simulations and measured channel impulse responses, from which parameters such as path loss and delay spread are derived. After validating the channel modeling approach, we investigate the singular values and the effect of user mobility onto the performance in a 4 × 4 distributed multiuser MIMO scenario.

Mots clés: Li-Fi; multiple-input multiple-output; channel measurements; ray tracing; throughput analysis

Domaines: Optique / photonique

Hossien B Eldeeb, Sreelal Maravanchery Mana, Volker Jungnickel, Peter Hellwig, Jonas Hilt, et al.. Distributed MIMO for Li-Fi: Channel Measurements, Ray Tracing and Throughput Analysis. IEEE Photonics Technology Letters, 2021, 33 (16), pp.916-919. ⟨10.1109/LPT.2021.3072254⟩. ⟨hal-03341370⟩