Multilevel Transmission in Dimmable Visible Light Communication Systems

Author

Sang Hyun Lee ; Kang-Il Ahn ; Jae Kyun Kwon

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Texas, Austin, TX, USA

Volume

31

Issue

20

fYear

2013

fDate

Oct.15, 2013

Firstpage

3267

Lastpage

3276

Abstract

This paper proposes a multilevel transmission scheme for dimmable visible light communication systems. To provide dimming control of the multilevel modulation, the concatenation of different pulse-amplitude-modulated symbols is used to yield the overall signal with an average amplitude that matches the dimming requirement. This scheme also aims at arbitrary dimming adaptation by adjusting the composition of concatenated differently modulated symbols. To this end, the problem is formulated into linear programming with the objective of maximizing the transmission data rate and satisfying the dimming requirements. We present an achievable data rate of this transmission scheme and demonstrate the error performance under iterative decoding.

Keywords

amplitude modulation; iterative decoding; light transmission; linear programming; optical communication; optical modulation; data rate; different pulse-amplitude-modulated symbols; dimmable visible light communication systems; dimming control; error performance; iterative decoding; linear programming; maximization; multilevel modulation; multilevel transmission; signal amplitude; transmission data; Closed-form solutions; Image color analysis; Linear code; Linear programming; Modulation; Random variables; Concatenated coding; dimming; linear codes; pulse amplitude modulation; visible light communication;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2013.2281209

Filename

6594857