An ICA based MIMO-OFDM VLC scheme

被引：14

作者：

Jiang, Fangqing ^{[1
]}

Deng, Honggui ^{[1
,2
,3
]}

Xiao, Wei ^{[1
]}

Tao, Shaohua ^{[1
]}

Zhu, Kaicheng ^{[1
]}

机构：

[1] Cent South Univ, Sch Phys & Elect, Changsha 410083, Hunan, Peoples R China

[2] Cent South Univ, Joint Res Inst, Urumqi, Peoples R China

[3] Xingjiang Nonfeerous, Urumqi, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2015年 / 347卷

基金：

中国国家自然科学基金;

关键词：

VLC; MIMO-OFDM; ICA; FM; Separation performance; VISIBLE-LIGHT COMMUNICATION;

D O I：

10.1016/j.optcom.2015.02.039

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we propose a novel ICA based MIMO-OFDM VLC scheme, where ICA is applied to convert the MIMO-OFDM channel into several SISO-OFDM channels to reduce computational complexity in channel estimation, without any spectral overhead. Besides, the FM is first investigated to further modulate the OFDM symbols to eliminate the correlation of the signals, so as to improve the separation performance of the ICA algorithm. In the 4 x 4MIMO-OFDM VLC simulation experiment, LOS path and NLOS paths are both considered, each transmitting signal at 100 Mb/s. Simulation results show that the BER of the proposed scheme reaches the 10(-5) level at SNR=20 dB, which is a large improvement compared to the traditional schemes. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：37 / 43

页数：7

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