Influence of Multiuser Interference on Performances of Direct-Current-Biased Optical Orthogonal Frequency Division Multiplexing Code Division Multiple Access System for Visible Light Communication

doi:10.3788/LOP56.110604

	Influence of Multiuser Interference on Performances of Direct-Current-Biased Optical Orthogonal Frequency Division Multiplexing Code Division Multiple Access System for Visible Light Communication
	Jia Kejun; Zhang Shouqin
刊名	LASER & OPTOELECTRONICS PROGRESS
	2019-06-10
卷号	56 期号:11
关键词	optical communications direct current-biased optical orthogonal frequency division multiplexing multicarrier code division multiple access multiuser interference
ISSN号	1006-4125
DOI	10.3788/LOP56.110604
英文摘要	Based on the direct-current-biased optical orthogonal frequency division multiplexing ( DCO-OFDM) combined with code division multiple access (CDMA), a DCO-MC-CDMA system is built. When the Gold code and m-sequence arc selected as spread spectrum address codes in the proposed system, their cross-correlation is worse than that of orthogonal codes owing to the limitation of the system structure, leading to a greater multi-user interference (MUI) . The maximum ratio combining, equal gain combining, and orthogonal recovery combining (ORC) arc used to derive the signal-to-noise ratio expression under the influences of additive white Gaussian noise, MUI, and limiting noise. The simulation model of the Monte Carlo bit error rate (BER) in MATLAB is established. The research results show that with the increase of the number of users, the MUI makes the system BER performance worse. In contrast, the ORC eliminates the MUI induced by the difference between subchannel gains, and thus the BER performance is the best. The HER performance of the DCO-MC-CDMA system with the Gold code is better, because the cross-correlation of the Gold code is better than that of the m-sequence in
WOS研究方向	Engineering ; Optics
语种	中文
出版者	SHANGHAI INST OPTICS & FINE MECHANICS, CHINESE ACAD SCIENCE
WOS记录号	WOS:000549845900012
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/155647]
专题	计算机与通信学院
作者单位	Lanzhou Univ Technol, Sch Comp & Commun, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Jia Kejun,Zhang Shouqin. Influence of Multiuser Interference on Performances of Direct-Current-Biased Optical Orthogonal Frequency Division Multiplexing Code Division Multiple Access System for Visible Light Communication[J]. LASER & OPTOELECTRONICS PROGRESS,2019,56(11).
APA	Jia Kejun,&Zhang Shouqin.(2019).Influence of Multiuser Interference on Performances of Direct-Current-Biased Optical Orthogonal Frequency Division Multiplexing Code Division Multiple Access System for Visible Light Communication.LASER & OPTOELECTRONICS PROGRESS,56(11).
MLA	Jia Kejun,et al."Influence of Multiuser Interference on Performances of Direct-Current-Biased Optical Orthogonal Frequency Division Multiplexing Code Division Multiple Access System for Visible Light Communication".LASER & OPTOELECTRONICS PROGRESS 56.11(2019).