Author
Kashef, M., Abdallah, M., Qaraqe, K., Haas, H., Uysal, Murat
Publication Date
2014
Publication Place
-
IEEE
Subject
OFDM modulation, Light emitting diodes, Optical communication, Optical modulation, Optimisation, Power control, Resource allocation, Telecommunication control
Type
Document
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
2166-9570
Record ID
060beb79-269d-4dc0-ab90-66a9e1d2cd83
Library Location
Electrical & Electronics Engineering
Date
2014
Notes
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Sample Text
In this paper, the performance of a visible light communication (VLC) network exploiting power control is considered. The achievable rate region of two VLC communication pairs is characterized. The system employs optical orthogonal frequency division multiplexing (O-OFDM) with power control performed at the transmitters. The optical signal clipping effect is taken into consideration which results from the physical limitations at the transmitters. Also, the system is constrained by the desired illumination power for each transmitter. We prove that the achievable rate region is defined as the union of two regions where the boundary of each of these regions can be obtained by a single variable optimization problem. Our numerical results show the effects of the system parameters including direct current (DC) bias, the desired illumination power, clipping noise and the relative positions of the receivers relative to the LED transmitters on the achievable rate region of the two users. We show the enhancement in the performance resulted from using power control compared to orthogonal resource allocation techniques.
DOI
10.1109/PIMRC.2014.7136285
