Performance of MIMO Enhanced Unipolar OFDM With Realistic Indoor Visible Light Channel Models

Loading...
Thumbnail Image

Date

2016

Authors

Panayırcı, Erdal
Miramirkhani, Farshad
Basar, Ertugrul
Panayırcı, Erdal
Uysal, Murat

Journal Title

Journal ISSN

Volume Title

Publisher

Institute of Electrical and Electronics Engineers Inc.

Open Access Color

OpenAIRE Downloads

OpenAIRE Views

Research Projects

Organizational Units

Journal Issue

Abstract

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. © 2016 IEEE.

Description

Keywords

MIMO Enhanced Unipolar Orthogonal Frequency Division Multiplexing (MIMO-eU-OFDM), Optical Wireless Communication (OWC), Realistic Indoor MIMO-VLC Channel Modeling

Turkish CoHE Thesis Center URL

Fields of Science

Citation

0

WoS Q

N/A

Scopus Q

N/A

Source

Volume

Issue

Start Page

233

End Page

238