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Improved Visible Light Communication Using Code Shift Keying Modulation

  • Ishrath UnissaEmail author
  • Syed Jalal Ahmad
  • P. Radha Krishna
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11319)

Abstract

Visible light communication can provide higher bandwidth and bit rates without causing any interference to the Radio Frequency signals. Red-Green-Blue Light-Emitting Diodes are more suitable than other light sources as they have a smaller switching time, greater lifespan and cost-effective. Designing a communication scheme that avoids dimming and flickering, and that maximize the throughput and coverage area is challenging. Modulation schemes such as Amplitude Shift Keying, Frequency Shift Keying, and Phase Shift Keying exist in the literature for communication with controlled dimming and flickering effect. However, these schemes may not be efficient as they bound the bit rates with more Bit Error Rate. In this paper, a spread spectrum technique, Code Shift Keying along with Manchester (CSK-M) coding, is used to improve bit rates, a reduction in Bit Error Rate with an efficient control of fluctuations and dimming effect. The simulation results show that the presented approach outperforms the existing modulation schemes.

Keywords

Visible light communication CSK-M Dimming BER Bit rate 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Ishrath Unissa
    • 1
    Email author
  • Syed Jalal Ahmad
    • 2
  • P. Radha Krishna
    • 3
  1. 1.Department of Electronics and Communication EngineeringMahatma Gandhi Institute of TechnologyHyderabadIndia
  2. 2.Department of Electronics and Communication EngineeringModel Institute of Engineering and TechnologyJammuIndia
  3. 3.Department of Computer Science and EngineeringNational Institute of TechnologyWarangalIndia

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