基于光子计数的DCO-FBMC可见光通信系统研究  

Research on Photon Counting-Based DCO-FBMC VLC System

作　　者：阎瑾 周小林 修思瑞 王宝睿 YAN Jin;ZHOU Xiaolin;XIU Sirui;WANG Baorui(Key Laboratory for Information Science of Electromagnetic Waves,Ministry of Education Fudan University,School of Information Science and Technology,Fudan University,Shanghai 200433,China)

机构地区：[1]复旦大学信息科学与工程学院,电磁波信息科学教育部重点实验室,上海200433

出　　处：《微型电脑应用》2022年第7期1-3,11,共4页Microcomputer Applications

基　　金：国家自然科学基金项目(61571135)。

摘　　要：为了突破带宽限制和提高频谱利用率,设计了一种基于光子计数的直流偏置光学滤波器组多载波(DC-biased optical filter-bank multi-carrier,DCO-FBMC)通信系统。采用光子计数的探测技术,以实现远距离弱光链路下的可靠通信。同时,还设计了SLM算法和限幅算法联合的峰均比(Peak-to-Average Power Radio,PAPR)抑制算法,降低信号非线性失真。结果表明,该系统误码率性能良好,在互补累积分布函数CCDF=10^(-3)时,PAPR可降至4.6 dB,相比未处理的系统降低了60%。理论分析和仿真结果证明了该光子计数DCO-FBMC通信系统的有效性。In order to solve the bandwidth limitation and improve the spectrum efficiency,a DC-biased optical filter-bank multi-carrier(DCO-FBMC)communication system based on photon-counting is designed.The photon-counting is used to realize reliable communication under long-distance weak link.SLM-clipping algorithm is designed to suppress PAPR of DCO-FBMC system,which can effectively reduce the signal nonlinear distortion.The results show that the system has good BER performance.When CCDF=10^(-3),PAPR is reduced to 4.6 dB,which is 60%lower than the untreated FBMC system.Theoretical analysis and simulation results prove the effectiveness of the photon-counting DCO-FBMC communication system.

关 键 词：可见光通信 FBMC 光子计数 峰均比 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]