Frontiers of Information Technology & Electronic Engineering
>> 2020,
Volume 21,
Issue 9
doi:
10.1631/FITEE.1900526
Code design for run-length control in visible light communication
Affiliation(s): School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China; School of Electrical and Data Engineering, University of Technology Sydney, Sydney 2007, Australia; School of Electrical Engineering and Automation, Jiangsu Normal University, Xuzhou 221116, China; less
Received: 2019-09-26
Accepted: 2020-09-09
Available online: 2020-09-09
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Abstract
Run-length limited (RLL) codes can facilitate reliable data transmission and provide flicker-free illumination in (VLC) systems. We propose novel high-rate RLL codes, which can improve error performance and mitigate flicker. Two RLL coding schemes are developed by designing the to further enhance the coding gain by improving the and using 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 of the various proposed RLL codes are described in detail, and the flicker performances of different codes are compared based on histograms. Simulations are conducted to evaluate the proposed RLL codes in on-off keying modulation VLC systems. Simulation results demonstrate that the proposed RLL codes achieve superior error performance to the existing RLL codes.
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