Convex Optimization Approach to Multi-Level Modulation for Dimmable Visible Light Communications under LED Efficiency Droop

被引：1

作者：

Lee, Sang Hyun ^{[1
]}

Park, Il-Kyu ^{[2
]}

Kwon, Jae Kyun ^{[3
]}

机构：

[1] Sejong Univ, Dept Elect Engn, Seoul 05000, South Korea

[2] Seoul Natl Univ Sci & Technol, Dept Mat Sci & Engn, Seoul 01811, South Korea

[3] Yeungnam Univ, Dept Elect Engn, Gyongsan 38541, South Korea

来源：

JOURNAL OF THE OPTICAL SOCIETY OF KOREA | 2016年 / 20卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Visible light communications; Efficiency droop; Dimming; Convex optimization; EMITTING-DIODES; CHANNELS; CAPACITY; AMPLITUDE; SPACE;

D O I：

10.3807/JOSK.2016.20.1.029

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper deals with a design method and capacity loss of an efficient multi-level modulation scheme for dimmable visible light communications (VLC) systems that use light-emitting diodes (LEDs) with efficiency droop. To this end, the impact of such an impairment on dimmable VLC is addressed with respect to multi-level modulations based on pulse-amplitude modulation (PAM) via data-rate optimization formulation.

引用

页码：29 / 35

页数：7