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

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Date
2016
Author
Yeşilkaya, Anıl
Miramirkhani, Farshad
Basar, Ertugrul
Panayirci, Erdal
Uysal, Murat
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.

Source

2016 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)

Pages

233-238

URI

https://hdl.handle.net/20.500.12469/1280
https://doi.org/10.1109/WCNCW.2016.7552705

Collections

  • Araştırma Çıktıları / Scopus [1565]
  • Elektrik-Elektronik Mühendisliği / Electrical - Electronics Engineering [321]

Keywords

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

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DSpace software copyright © 2002-2015  DuraSpace
Contact Us | Send Feedback
Theme by 
@mire NV