Author
Yesilkaya, A., Miramirkhani, Farshad, Basar, E., Panayirci, E., Uysal, Murat
Publication Date
2016
Publication Place
-
IEEE
Subject
Optical wireless communication (OWC), MIMO enhanced unipolar orthogonal frequency division multiplexing (MIMO-eU-OFDM), Realistic indoor MIMOVLC channel modeling
Type
Document
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1558-2612
Record ID
3ae0aba3-36d3-48a8-b721-6ef1e40b1c35
Library Location
Electrical & Electronics Engineering
Date
2016
Notes
TUBITAK ; Istanbul Development Agency
Sample Text
Visible light communication (VLC) involves the dual use of illumination infrastructure for high speed wireless access. Designing such optical based communication systems, realistic indoor optical channel modeling becomes an important issue to be handled. In this paper, first we obtain new realistic indoor VL channel characterizations and models, in a multiple-input multiple-output (MIMO) transmission scenario, using non-sequential ray tracing approach for the channel impulse responses (CIRs). Practical issues such as number of light emitting diode (LED) chips per luminary, spacing between LED chips, objects inside the room and cabling topology are also investigated. On the other hand, since indoor optical channels exhibit frequency selectivity, multi-carrier communication systems, particularly orthogonal frequency division multiplexing (OFDM) is used to handle the resulting inter-symbol interference in VLC systems. Hence, we propose a new MIMO-OFDM based VLC system, called MIMO enhanced unipolar OFDM (MIMO-eU-OFDM) by combining MIMO transmission techniques with the recently proposed eU-OFDM scheme. The bit error rate (BER) performance of the proposed system is investigated in the presence of the 2 × 2 and 4 × 4 realistic MIMO VLC channels and its BER performance is compared with the reference optical MIMO-OFDM systems.
DOI
10.1109/WCNC.2016.7564676
