Yazar
Kashef, M., Abdallah, M., Qaraqe, K., Haas, H., Uysal, Murat
Basım Tarihi
2015-11
Basım Yeri
-
IEEE
Konu
Light interference, Optical communication, Optical transmitters, Telecommunication network management
Tür
Süreli Yayın
Dil
İngilizce
Dijital
Evet
Yazma
Hayır
Kütüphane
Özyeğin Üniversitesi
Demirbaş Numarası
1943-0620
Kayıt Numarası
e0edec9f-27da-42f3-9811-0fb1669be730
Lokasyon
Electrical & Electronics Engineering
Tarih
2015-11
Notlar
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin
In this paper, we consider the performance of a visible light communication (VLC) network with coordinated interference management. The VLC transmitters are allowed to coordinate their transmissions using one of two transmission schemes so as to maximize a network utility function. In the first technique, namely, orthogonal transmission, the utility function is maximized by optimally partitioning all resources. In the second technique, namely, power control, the transmitters are allowed to share the full spectrum while being allowed to control their power so as to maximize network performance. In particular, for each transmission technique, we optimize a general network utility function under the constraint of a desired illumination power for each VLC transmitter, taking into consideration the optical signal clipping effect due to the physical limitations of the VLC transmitters. For the power control transmission scheme, we develop a computationally efficient method for finding the optimal power values by deriving a computationally efficient way to obtain the achievable spectral efficiency region. Considering the summation and the proportional fairness utility functions, our simulation results show that the optimal transmission scheme depends on the location of the VLC users and the desired illumination power. Also, we show the superiority of the performance of the power control scheme over the orthogonal transmission scheme for low interference regions.
DOI
10.1364/JOCN.7.001098
Cilt
7
