Training sequence based channel estimation for indoor visible light communication system

被引：0
|
作者：
王俊波 [1 ,2 ]
焦媛 [1 ]
党小宇 [1 ]
陈明 [2 ]
谢秀秀 [1 ]
曹玲玲 [1 ]
机构：
[1] College of Information Science and Technology,Nanjing University of Aeronautics and Astronautics
[2] National Mobile Communications Research Laboratory,Southeast University
来源：
Optoelectronics Letters | 2011年 / 7卷 / 03期
基金：
中国国家自然科学基金;
关键词：
MMSE; VLC; Training sequence based channel estimation for indoor visible light communication system;
D O I：
暂无
中图分类号：
TN929.1 [光波通信、激光通信];
学科分类号：
0803 ;
摘要：
Channel estimation is a key technology in indoor wireless visible light communications(VLCs).Using the training sequence(TS),this paper investigates the channel estimation in indoor wireless visible light communications.Based on the propagation and signal modulation characteristics of visible light,a link model for the indoor wireless visible light communications is established.Using the model,three channel estimation methods,i.e.,the correlation method,the least square(LS) method and the minimum mean square error(MMSE) method,are proposed.Moreover,the performances of the proposed three methods are evaluated by computer simulation.The results show that the performance of the correlation method is the worst,the LS method is suitable for higher signal to noise ratio(SNR),and the MMSE method obtains the best performance at the expense of highest complexity.
引用
收藏
页码：213 / 216
页数：4
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