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| 三跳混合FSO/RF/VLC中继系统性能研究 |
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贾楠楠1, 方国杏1, 杨茹1, 王淑贤1, 王龙龙1, 彭张节1,2
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1.上海师范大学 信息与机电工程学院, 上海 201418;2.东南大学 信息科学与工程学院 移动通信国家重点实验室, 江苏 南京 211189
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| 摘要: |
| 提出了一个三跳混合自由空间光（FSO）通信/射频（RF）/可见光通信（VLC）中继通信系统，分析了该通信系统的中断概率性能.在此系统中，FSO信道遵循gamma-gamma分布，RF信道遵循瑞利分布.首先，推导了以Meijer’s G函数表示基于混合FSO/RF/VLC系统端到端γ的累积分布函数（CDF）的闭合表达式；然后，基于信道统计信息，进一步推导了系统的中断概率；最后，分析了不同参数对系统中断概率性能的影响.仿真结果表明：FSO信道中的大气湍流参数、VLC信道LED灯的高度及接收处的视野均对系统中断性能造成了影响. |
| 关键词: 自由空间光(FSO)通信 可见光通信（VLC） 二进制相移键控(BPSK) 中断概率 |
| DOI：10.3969/J.ISSN.1000-5137.2020.01.010 |
| 分类号:TN929.5 |
| 基金项目:国家自然科学基金（61701307）；东南大学信息科学与工程学院移动通信国家重点实验室开放研究基金（2018D14） |
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| On the performance of mixed triple-hop FSO/RF/VLC relay system |
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JIA Nannan1, FANG Guoxing1, YANG Ru1, WANG Shuxian1, WANG Longlong1, PENG Zhangjie1,2
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1.College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 201418, China;2.National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing 211189, Jiangsu, China
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| Abstract: |
| In this paper, a three-hop hybrid free space optical(FSO) communication/radio frequency (RF)/visible light communication (VLC) relay communication system was proposed and the outage probability performance of the proposed systemwas analyzed.Gamma-gamma distribution was followed by the FSO channel,while the RF channel was subject to Rayleigh distribution.The novel exact closed-form expressions for cumulative function of the end-to-end signal-to-noise γ of the proposed system in terms of Meijer’s G function were firstly derived.Secondly,based on the channel statistics,the outage probability of the system was further deduced.Finally,the influence of different parameters on the system outage probability performance was analyzed.Simulation results showed that system outage probability performance could be affected by atmospheric turbulence parameters in FSO channels,LED light height in VLC channels and receiving vision field. |
| Key words: free space optical (FSO) communication visible light communication (VLC) binary phase shift keying (BPSK) outage probability |
