Joint bit and power loading for adaptive MIMO OFDM VLC systems

Name: Joint bit and power loading for adaptive MIMO OFDM VLC systems
Author: Siddiqi, U. F., Narmanlıoğlu, Ömer, Uysal, Murat, Sait, S. M.

İsim	Joint bit and power loading for adaptive MIMO OFDM VLC systems
Yazar	Siddiqi, U. F., Narmanlıoğlu, Ömer, Uysal, Murat, Sait, S. M.
Basım Tarihi:	2020-07
Basım Yeri	- Wiley
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	2161-3915
Kayıt Numarası	d7be9fc6-3b2c-4ff1-9587-8f9dd2e4acae
Lokasyon	Electrical & Electronics Engineering
Tarih	2020-07
Notlar	King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
Örnek Metin	Visible light communication (VLC) is a short-range wireless access technology based on the dual use of illumination structure. The frequency-selective characteristics of VLC channels motivate the use of orthogonal frequency division multiplexing (OFDM). In addition, the presence of multiple light sources in most indoor spaces makes multiple-input-multiple-output (MIMO) communication techniques a natural solution for VLC systems. In this paper, we investigate the design of an adaptive MIMO OFDM system. Specifically, we propose adaptive bit and power loading for a direct current-biased OFDM VLC system with MIMO mode switching between repetition coding and spatial multiplexing. We formulate the adaptive algorithm design as an optimization problem where we aim to maximize spectral efficiency through the proper selection of modulation order, power level, and MIMO mode, while satisfying a targeted bit error rate. To solve the underlying NP-hard problems, we use a simulated annealing heuristic. We present Monte Carlo simulation results for a typical indoor setting and illustrate the performance improvements through link adaptation.
DOI	10.1002/ett.3850
Cilt	31

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Joint bit and power loading for adaptive MIMO OFDM VLC systems

Yazar Siddiqi, U. F., Narmanlıoğlu, Ömer, Uysal, Murat, Sait, S. M.

Basım Tarihi 2020-07

Basım Yeri - Wiley

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 2161-3915

Kayıt Numarası d7be9fc6-3b2c-4ff1-9587-8f9dd2e4acae

Lokasyon Electrical & Electronics Engineering

Tarih 2020-07

Notlar King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia

Örnek Metin Visible light communication (VLC) is a short-range wireless access technology based on the dual use of illumination structure. The frequency-selective characteristics of VLC channels motivate the use of orthogonal frequency division multiplexing (OFDM). In addition, the presence of multiple light sources in most indoor spaces makes multiple-input-multiple-output (MIMO) communication techniques a natural solution for VLC systems. In this paper, we investigate the design of an adaptive MIMO OFDM system. Specifically, we propose adaptive bit and power loading for a direct current-biased OFDM VLC system with MIMO mode switching between repetition coding and spatial multiplexing. We formulate the adaptive algorithm design as an optimization problem where we aim to maximize spectral efficiency through the proper selection of modulation order, power level, and MIMO mode, while satisfying a targeted bit error rate. To solve the underlying NP-hard problems, we use a simulated annealing heuristic. We present Monte Carlo simulation results for a typical indoor setting and illustrate the performance improvements through link adaptation.

DOI 10.1002/ett.3850

Cilt 31