A CNA-based blind equalization scheme for ACO-OFDM in VLC system

被引：0
|
作者：
He, Jing [1 ]
Zhang, Rui [1 ]
Shi, Jin [1 ]
Chen, Zuo [1 ]
Cheng, Yun [2 ]
机构：
[1] Hunan Univ, Coll Comp Sci & Elect Engn, Changsha, Hunan, Peoples R China
[2] Hunan Univ Humanities Sci & Technol, Dept Informat Sci & Engn, Loudi 417000, Hunan, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2018年 / 419卷
基金：
中国国家自然科学基金;
关键词：
Visible light communication (VLC); Blind equalization; Constant norm algorithm (CNA); Constant modulus algorithm (CMA); Asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM); OPTICAL OFDM; COMMUNICATION-SYSTEMS; IM/DD SYSTEMS; MODULATION;
D O I：
10.1016/j.optcom.2018.02.065
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, a blind equalization scheme based on the constant norm algorithm (CNA) is proposed for asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) in visible light communication (VLC) system. At the receiver, the CNA can be used to improve system spectral efficiency due to the free of training symbols. The simulation results indicate that for ACO-OFDM signal, the CNA-based blind equalization scheme achieves better mean square error (MSE) performance than that of constant mode algorithm (CMA). Moreover, the CNA-based blind equalization scheme outperforms the CMA scheme in the term of bit error ratio (BER) under same data rate in VLC system.
引用
收藏
页码：120 / 124
页数：5
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