Multi-user massive MIMO visible light communications with limited pilot transmission

Name: Multi-user massive MIMO visible light communications with limited pilot transmission
Author: Narmanlıoğlu, Ömer, Uysal, Murat

İsim	Multi-user massive MIMO visible light communications with limited pilot transmission
Yazar	Narmanlıoğlu, Ömer, Uysal, Murat
Basım Tarihi:	2022-06-01
Basım Yeri	- IEEE
Konu	Limited feedback, Massive MIMO, Visible light communication
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1536-1276
Kayıt Numarası	067bd9cb-218a-4e81-8ee7-edd07a349f3d
Lokasyon	Electrical & Electronics Engineering
Tarih	2022-06-01
Örnek Metin	Visible light communication (VLC) building on the existing illumination infrastructure utilizes light emitting diode (LED) luminaries as wireless transmitters. To achieve data rates on the order of gigabits per second in VLC systems, multiple-input multiple-output (MIMO) transmission has been identified as a key technology. In this paper, we consider a centralized network architecture where the ceiling LED luminaries act as transmitter elements of a distributed massive MIMO VLC system. To obtain the full benefits of massive MIMO, channel state information must be available at the transmitter side. Downlink (DL) channel estimation in a massive MIMO system requires huge pilot overhead in DL as well as feedback overhead in uplink. This makes the implementation of massive MIMO system infeasible if not properly designed. In our study, we address the design of massive MIMO VLC systems with a limited number of DL pilot signals. We explore different DL pilot patterns (PPs) in frequency, time, and spatial domains where interpolation is performed to obtain the global channel matrix taking advantage of the indoor environment geometry and layout of luminaries. We then present data rate results for different DL PPs under the consideration of varying number of active user equipments through Monte-Carlo simulations.
DOI	10.1109/TWC.2021.3127719
Cilt	21

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Multi-user massive MIMO visible light communications with limited pilot transmission

Yazar Narmanlıoğlu, Ömer, Uysal, Murat

Basım Tarihi 2022-06-01

Basım Yeri - IEEE

Konu Limited feedback, Massive MIMO, Visible light communication

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1536-1276

Kayıt Numarası 067bd9cb-218a-4e81-8ee7-edd07a349f3d

Lokasyon Electrical & Electronics Engineering

Tarih 2022-06-01

Örnek Metin Visible light communication (VLC) building on the existing illumination infrastructure utilizes light emitting diode (LED) luminaries as wireless transmitters. To achieve data rates on the order of gigabits per second in VLC systems, multiple-input multiple-output (MIMO) transmission has been identified as a key technology. In this paper, we consider a centralized network architecture where the ceiling LED luminaries act as transmitter elements of a distributed massive MIMO VLC system. To obtain the full benefits of massive MIMO, channel state information must be available at the transmitter side. Downlink (DL) channel estimation in a massive MIMO system requires huge pilot overhead in DL as well as feedback overhead in uplink. This makes the implementation of massive MIMO system infeasible if not properly designed. In our study, we address the design of massive MIMO VLC systems with a limited number of DL pilot signals. We explore different DL pilot patterns (PPs) in frequency, time, and spatial domains where interpolation is performed to obtain the global channel matrix taking advantage of the indoor environment geometry and layout of luminaries. We then present data rate results for different DL PPs under the consideration of varying number of active user equipments through Monte-Carlo simulations.

DOI 10.1109/TWC.2021.3127719

Cilt 21