The impact of location errors on achievable rates in OFDM-based multi-user visible light communication systems

Name: The impact of location errors on achievable rates in OFDM-based multi-user visible light communication systems
Author: Kashef, M., Abdallah, M., Qaraqe, K., Uysal, Murat

İsim	The impact of location errors on achievable rates in OFDM-based multi-user visible light communication systems
Yazar	Kashef, M., Abdallah, M., Qaraqe, K., Uysal, Murat
Basım Tarihi:	2014
Basım Yeri	- IEEE
Konu	OFDM modulation, Light emitting diodes, Optical communication, Optical modulation, Optical receivers, Optical transmitters, Power control, Probability
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	978-147996676-9
Kayıt Numarası	008a1677-7e24-48b7-981e-1bf658f4910c
Lokasyon	Electrical & Electronics Engineering
Tarih	2014
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	Visible light communication (VLC) is a communication technology in which data is transferred by modulating the visible light intensity. VLC signals degrade significantly due to the absence of the line of sight (LOS) between the transmitter and the receiver. Hence, any errors in determining the location of the users and equivalently the distance between the nodes can result in performance degradation. In this paper, we investigate the impact of location errors on performance of a VLC network exploiting power control. We consider the achievable rate region of two VLC communication pairs as the performance criterion. The system employs optical orthogonal frequency division multiplexing (O-OFDM) with power control. The power control algorithm exploits the receivers locations information to determine the distances between the transmitters and the receivers, which will be used to find the optimal transmission powers. We consider the case of random errors in the location estimation process modeled with a general error probability density function. In calculating the achievable rates of the communication pairs, the optical signal clipping effect is taken into consideration that results from the physical limitations at the transmitters. The numerical results show the effects of the system parameters including the location error variance, the desired illumination power and the relative positions of the receivers relative to the light emitting diodes (LED) transmitters on the achievable rate region.
DOI	10.1109/IWOW.2014.6950778

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The impact of location errors on achievable rates in OFDM-based multi-user visible light communication systems

Yazar Kashef, M., Abdallah, M., Qaraqe, K., Uysal, Murat

Basım Tarihi 2014

Basım Yeri - IEEE

Konu OFDM modulation, Light emitting diodes, Optical communication, Optical modulation, Optical receivers, Optical transmitters, Power control, Probability

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 978-147996676-9

Kayıt Numarası 008a1677-7e24-48b7-981e-1bf658f4910c

Lokasyon Electrical & Electronics Engineering

Tarih 2014

Notlar Due to copyright restrictions, the access to the full text of this article is only available via subscription.

Örnek Metin Visible light communication (VLC) is a communication technology in which data is transferred by modulating the visible light intensity. VLC signals degrade significantly due to the absence of the line of sight (LOS) between the transmitter and the receiver. Hence, any errors in determining the location of the users and equivalently the distance between the nodes can result in performance degradation. In this paper, we investigate the impact of location errors on performance of a VLC network exploiting power control. We consider the achievable rate region of two VLC communication pairs as the performance criterion. The system employs optical orthogonal frequency division multiplexing (O-OFDM) with power control. The power control algorithm exploits the receivers locations information to determine the distances between the transmitters and the receivers, which will be used to find the optimal transmission powers. We consider the case of random errors in the location estimation process modeled with a general error probability density function. In calculating the achievable rates of the communication pairs, the optical signal clipping effect is taken into consideration that results from the physical limitations at the transmitters. The numerical results show the effects of the system parameters including the location error variance, the desired illumination power and the relative positions of the receivers relative to the light emitting diodes (LED) transmitters on the achievable rate region.

DOI 10.1109/IWOW.2014.6950778