Rate Adaptive System for Visible Light Communications

ALBAYRAK C., TÜRK K.

40th International Conference on Telecommunications and Signal Processing (TSP), Barcelona, Spain, 5 - 07 July 2017, pp.200-203 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/tsp.2017.8075968
  • City: Barcelona
  • Country: Spain
  • Page Numbers: pp.200-203
  • Keywords: code rate adaptation, rateless codes, spectral efficiency, visible light communications, RAPTOR CODES
  • Karadeniz Technical University Affiliated: Yes

Abstract

Visible light communications (VLC) use light emitting diodes (LEDs) for both illumination and data transmission. In this work, we propose a rate adaptive system based on Raptor codes for VLC system. We consider realistic channel by using a model room with multiple LED armatures. Chosen LEDs are commercially available (Cree Xlamp ML-C). It is assumed that LEDs simultaneously transmit same data and the VLC receiver moves around in the room. Simulation results show that proposed rate adaptive system gives seamless rate adaptation and significantly improves the spectral efficiency.