Effect of wiring and cabling topologies on the performance of distributed MIMO OFDM VLC systems

Omer Narmanlioglu, Refik Kizilirmak, Farshad Miramirkhani, Sadi Safaraliev, Sadiq M. Sait, Murat Uysal

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Since most indoor spaces have multiple luminaires for illumination, for visible light communication (VLC) systems, multiple-input multiple-output (MIMO) communication emerges as a natural solution to improve the data rates and/or the link reliability. The existing works on MIMO VLC systems, however, overlook the characteristics of the lighting infrastructure and the luminaire design, which might have implications for the VLC system design. A luminaire typically consists of multiple LED chips. The wiring topology refers to how the LED chips are connected within the luminaire. The cabling topology, on the other hand, refers to how the luminaires are connected to the communication access point (AP). Based on the type and length of cabling and wiring, significant delays can be introduced, which should be taken into account in channel modeling. In this paper, we adopt the non-sequential ray tracing to model the distributed MIMO VLC channels for various practical wiring and cabling topologies. Based on the developed channel models, we provide a comparative performance analysis of repetition coding (RC), spatial multiplexing (SMUX), and spatial modulation (SMOD) MIMO modes. Our results quantify the effect of wiring/cabling delays and provide insights into the optimized design of lighting infrastructure and luminaires for the support of VLC as an add-on service.

Original languageEnglish
Article number8698786
Pages (from-to)52743-52754
Number of pages12
JournalIEEE Access
Volume7
DOIs
Publication statusPublished - Jan 1 2019

Keywords

  • cabling delay
  • channel modeling
  • multiple-input multiple-output
  • OFDM
  • Visible light communication

ASJC Scopus subject areas

  • Computer Science(all)
  • Materials Science(all)
  • Engineering(all)

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  • Cite this

    Narmanlioglu, O., Kizilirmak, R., Miramirkhani, F., Safaraliev, S., Sait, S. M., & Uysal, M. (2019). Effect of wiring and cabling topologies on the performance of distributed MIMO OFDM VLC systems. IEEE Access, 7, 52743-52754. [8698786]. https://doi.org/10.1109/ACCESS.2019.2903726