Code Design for Flicker Mitigation in Visible Light Communications Using Finite State Machines Academic Article

abstract

• 2017 IEEE. The IEEE 802.15.7 standard for visible light communication (VLC) includes the use of run-length-limited codes to mitigate modulation-induced flickering and the further use of coding to improve bit error rate performance. In this paper, we introduce algorithms to design codes using finite-state machines, which provide simultaneously a coding gain while also mitigating flicker. The codes have the additional advantage of being optimally soft-decision decodable using the Viterbi algorithm. To compare the flicker mitigation performance of different codes, we further introduce a mathematical measure of flicker based on the power spectrum of the transmitted signals. We discuss tradeoffs between flicker mitigation, code rate, and coding gain, design several codes, and compare their error rate and flicker mitigation performance to some codes in the VLC standard.

authors

• Georghiades, Costas

published proceedings

• IEEE TRANSACTIONS ON COMMUNICATIONS

author list (cited authors)

• Mejia, C. E., Georghiades, C. N., Abdallah, M. M., & Al-Badarneh, Y. H.

citation count

• 26

complete list of authors

• Mejia, Carlos E||Georghiades, Costas N||Abdallah, Mohamed M||Al-Badarneh, Yazan H

publication date

• May 2017

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE TRANSACTIONS ON COMMUNICATIONS  Journal

keywords

• Channel Coding
• Finite-state-machines
• Flicker Mitigation
• Ook
• Visible Light Communication
• Viterbi Algorithm
• Vppm

Digital Object Identifier (DOI)

• 10.1109/TCOMM.2017.2657518

start page

• 2091

end page

• 2100

volume

• 65

issue

• 5

URL

• http://dx.doi.org/10.1109/tcomm.2017.2657518