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Frontiers of Information Technology & Electronic Engineering  1998 Vol.-1 No.-1 P.

10.1631/FITEE.1900526


Code design for run-length control in visible light communication


Author(s):  Zong-yan LI, Hong-lu YU, Bao-ling SHAN, De-xuan ZOU, Shi-yin LI

Affiliation(s):  School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China; more

Corresponding email(s):   lizongyan@cumt.edu.cn, yuhonglu1993@126.com, baoling.shan@student.uts.edu.au

Key Words:  Visible light communication, Run-length limited codes, Finite state machine, Minimum Hamming distance


Zong-yan LI, Hong-lu YU, Bao-ling SHAN, De-xuan ZOU, Shi-yin LI. Code design for run-length control in visible light communication[J]. Frontiers of Information Technology & Electronic Engineering, 1998, -1(-1): .

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year="1998",
publisher="Zhejiang University Press & Springer",
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%I Zhejiang University Press & Springer
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J0 - Frontiers of Information Technology & Electronic Engineering
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Abstract: 
Run-length limited (RLL) codes can facilitate reliable data transmission and provide flicker-free illumination in visible light communication (VLC) systems. This study proposes novel high-rate RLL codes, which can improve error performance and mitigate flicker. Two RLL coding schemes are developed by designing the finite-state machine to further enhance the coding gain by improving the minimum Hamming distance and by utilizing the state-splitting method to realize small state numbers. In our RLL code design, the construction of the codeword set is critical. This codeword set is designed considering the set-partitioning algorithm criterion. The flicker control and minimum Hamming distance of the various proposed RLL codes are described in detail, and the flicker performance of different codes is compared based on histograms. Simulations are conducted to evaluate the proposed RLL codes in on-off keying modulation VLC systems. The simulation results demonstrate that the proposed RLL codes achieve superior error performances compared to some of the existing RLL codes.

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