Symbol Error Rate Performance Analysis of Non-Orthogonal Multiple Access for Visible Light Communications  

作　　者：Hongji Huang Jinyuan Wang Jie Wang Jie Yang Jian Xiong Guan Gui 

机构地区：[1]College of Telecommunication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China

出　　处：《China Communications》2017年第12期153-161,共9页中国通信（英文版）

基　　金：supported by National Natural Science Foundation of China grants(No.61401069,No.61271240,No.61501254);Jiangsu Specially Appointed Professor Grant(RK002STP16001);Innovation and Entrepreneurship of Jiangsu High-level Talent Grant(CZ0010617002);High-level talent startup grant of Nanjing University of Posts and Telecommunications(XK0010915026);“1311 Talent Plan” of Nanjing University of Posts and Telecommunications

摘　　要：Non-orthogonal multiple access(NOMA) is considered as one of promising radio access techniques for visible light communications(VLC) in next-generation wireless communications systems.In order to provide theoretical support for designing VLC-NOMA,we derive its analytic expressions for the symbol error rate(SER).Specifically,NOMA is first incorporated with appropriate VLC to establish a VLC-NOMA framework.Afterwards,mathematical expressions of the SER for the VLC-NOMA are developed.Moreover,numerical results are provided carefully to demonstrate that the proposed VLC-NOMA scheme outperforms than state-of-the-art orthogonal frequency division multiple access(OFDMA) one in terms of SER performance.Finally,relationships between the SER performance and the number of users,power allocation coefficient and semi-angle are well investigated,which can give us a scientific guide to devise the VLC-NOMA system for achieving better SER performance.Non-orthogonal multiple access(NOMA) is considered as one of promising radio access techniques for visible light communications(VLC) in next-generation wireless communications systems.In order to provide theoretical support for designing VLC-NOMA,we derive its analytic expressions for the symbol error rate(SER).Specifically,NOMA is first incorporated with appropriate VLC to establish a VLC-NOMA framework.Afterwards,mathematical expressions of the SER for the VLC-NOMA are developed.Moreover,numerical results are provided carefully to demonstrate that the proposed VLC-NOMA scheme outperforms than state-of-the-art orthogonal frequency division multiple access(OFDMA) one in terms of SER performance.Finally,relationships between the SER performance and the number of users,power allocation coefficient and semi-angle are well investigated,which can give us a scientific guide to devise the VLC-NOMA system for achieving better SER performance.

关 键 词：VISIBLE light communication(VLC) non-orthogonal multiple access(NOMA) SYMBOL ERROR rate (SER) 

分 类 号：TN929.1[电子电信—通信与信息系统]