室内NOMA-CAP可见光通信系统设计与性能分析  

Design and performance analysis of indoor NOMA-CAP visible light communication system

作　　者：潘亚东 林邦姜[2] 骆加彬 聂康宁 杨婧娴 PAN Yadong;LIN Bangjiang;LUO Jiabin;NIE Kangning;YANG Jingxian(School of Advanced Manufacturing,Fuzhou University,Quanzhou,Fujian 262251,China;Quanzhou Equipment Manufacturing Research Center,Haixi Institute,Chinese Academy of Sciences,Quanzhou,Fujian 362000,China)

机构地区：[1]福州大学先进制造学院,福建泉州262251 [2]中国科学院海西研究院泉州装备制造研究中心,福建泉州362000

出　　处：《福州大学学报（自然科学版）》2024年第6期691-697,共7页Journal of Fuzhou University(Natural Science Edition)

基　　金：福建省自然科学基金资助项目(2022J01499);福建省重点技术创新及产业化资助项目(2023G006);区域光纤通信网与新型光通信系统国家重点实验室开放基金资助项目(2023GZKF10)。

摘　　要：研究一种基于无载波幅度相位(CAP)调制的非正交多址接入可见光通信(NOMA-VLC)系统.与现有的基于正交频分复用(OFDM)调制的NOMA-VLC系统相比,CAP调制具有较低的信号峰均功率比(PAPR)和复杂度,能够有效提升系统的传输性能.讨论在不同峰峰值和比特率下,NOMA-CAP-VLC系统的传输性能,并采用载波相位估计和Volterra非线性均衡算法对信号的相位偏移和非线性损伤进行补偿.结果显示,NOMA-CAP-VLC系统在可达速率和误码率性能方面均优于NOMA-OFDM-VLC系统.A non-orthogonal multiple access visible light communication(NOMA-VLC)system based on carrier-less amplitude-phase(CAP)modulation is studied.Compared with the existing NOMA-VLC system based on orthogonal frequency division multiplexing(OFDM)modulation,CAP modulation has lower signal peak-to-average power ratio(PAPR)and complexity,which can effectively improve the transmission performance of the system.The transmission performance of NOMA-CAP-VLC system at different peak-to-peak values and bit rates is studied experimentally.Carrier phase estimation and Volterra nonlinear equalization algorithm are used to compensate the phase shift and nonlinear distor-tion of the signal.The results show that NOMA-CAP-VLC system is superior to NOMA-OFDM-VLC system in both achievable rate and bit error rate.

关 键 词：可见光通信 无载波幅度相位调制 非正交多址接入 相位偏移 非线性均衡 

分 类 号：TN256[电子电信—物理电子学]