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

被引：26

作者：

Mejia, Carlos E. ^{[1
]}

Georghiades, Costas N. ^{[1
]}

Abdallah, Mohamed M. ^{[2
]}

Al-Badarneh, Yazan H. ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA

[2] Hamad Bin Khalifa Univ, Coll Sci & Engn, Doha, Qatar

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2017年 / 65卷 / 05期

关键词：

Visible light communication; flicker mitigation; finite-state-machines; channel coding; OOK; VPPM; Viterbi algorithm;

D O I：

10.1109/TCOMM.2017.2657518

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：2091 / 2100

页数：10

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