Limited feedback channel estimation for multi-user massive mimo visible light communications

Name: Limited feedback channel estimation for multi-user massive mimo visible light communications
Author: Narmanlıoğlu, Ömer, Uysal, Murat

İsim	Limited feedback channel estimation for multi-user massive mimo visible light communications
Yazar	Narmanlıoğlu, Ömer, Uysal, Murat
Basım Tarihi:	2020
Basım Yeri	- IEEE
Konu	Massive MIMO, OFDM, Pilot arrangement, Beamforming, Visible light communications
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	978-172815089-5
Kayıt Numarası	f033cacf-183b-4811-86f2-a179a857a3a8
Lokasyon	Electrical & Electronics Engineering
Tarih	2020
Notlar	TÜBİTAK
Örnek Metin	Building on the existing illumination infrastructure, visible light communication (VLC) utilizes light emitting diode (LED) luminaries as wireless access points. The presence of large number of ceiling lights in conference halls, classrooms and similar public places makes possible the implementation of massive multiple-input multiple-output (MIMO) VLC systems in a distributed manner. In order to obtain the full benefits of massive MIMO communications, channel state information must be available at transmitter side. Estimation of downlink channel through pilot signals, if not judiciously designed, requires huge pilot overhead and makes the implementation of massive MIMO system infeasible. In our study, we address the design of massive MIMO VLC systems with a limited number of pilot signals. We explore different pilot arrangements in spatial, frequency, and time domains where interpolation is performed to obtain global channel matrix taking advantage of the indoor environment geometry and layout of luminaries. We consider direct current biased orthogonal frequency division multiplexing as the basis of physical layer and present simulation results to demonstrate the achievable spectral efficiencies for pilot signal arrangements under consideration.
DOI	10.1109/ICC40277.2020.9148729

Kaynağa git Özyeğin Üniversitesi

Aramaya Dön

Özyeğin Üniversitesi

Kaynağa git

Limited feedback channel estimation for multi-user massive mimo visible light communications

Yazar Narmanlıoğlu, Ömer, Uysal, Murat

Basım Tarihi 2020

Basım Yeri - IEEE

Konu Massive MIMO, OFDM, Pilot arrangement, Beamforming, Visible light communications

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 978-172815089-5

Kayıt Numarası f033cacf-183b-4811-86f2-a179a857a3a8

Lokasyon Electrical & Electronics Engineering

Tarih 2020

Notlar TÜBİTAK

Örnek Metin Building on the existing illumination infrastructure, visible light communication (VLC) utilizes light emitting diode (LED) luminaries as wireless access points. The presence of large number of ceiling lights in conference halls, classrooms and similar public places makes possible the implementation of massive multiple-input multiple-output (MIMO) VLC systems in a distributed manner. In order to obtain the full benefits of massive MIMO communications, channel state information must be available at transmitter side. Estimation of downlink channel through pilot signals, if not judiciously designed, requires huge pilot overhead and makes the implementation of massive MIMO system infeasible. In our study, we address the design of massive MIMO VLC systems with a limited number of pilot signals. We explore different pilot arrangements in spatial, frequency, and time domains where interpolation is performed to obtain global channel matrix taking advantage of the indoor environment geometry and layout of luminaries. We consider direct current biased orthogonal frequency division multiplexing as the basis of physical layer and present simulation results to demonstrate the achievable spectral efficiencies for pilot signal arrangements under consideration.

DOI 10.1109/ICC40277.2020.9148729