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60GHz全双工OFDM-rof系统的实验研究

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通信学报 2011年第2期32卷 72-76页

作者：董泽曹子峥陈林余建军湖南大学计算机与通信学院湖南长沙410082 湖南大学微纳光电器件及应用教育部重点实验室湖南长沙410082

研究了基于光外部调制的方式产生60GHz光毫米波的全双工光纤无线(rof)通信系统。实验利用29GHzRF源产生58GHz的光载毫米波,2.5Gbit/s OFDM信号作为下行数据信号调制到光载毫米波上并传输光纤20km,在基站与用户单元实现3.3m的无线传输。... 详细信息

研究了基于光外部调制的方式产生60GHz光毫米波的全双工光纤无线(rof)通信系统。实验利用29GHzRF源产生58GHz的光载毫米波,2.5Gbit/s OFDM信号作为下行数据信号调制到光载毫米波上并传输光纤20km,在基站与用户单元实现3.3m的无线传输。同时实现了下行信号中心载波重利用作为上行信号的光载波,2.5Gbit/s的OOK信号作为上行数据信号调制到光载波上经20km上行链路光纤传输至中心站。

关键词：光通信 rof OFDM 毫米波 60GHz无线波长重用

Performance Analysis of WDM rof-EPON Link with and without DCF and FBG

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Optics and Photonics Journal 2013年第2期3卷 163-168页

作者： Baljeet Kaur Ajay K. Sharma Vinod Kapoor Department of Computer Science and Engineering National Institute of Technology Jalandhar India Department of Electronics and Communication Engineering Guru Nanak Dev Engineering College Ludhiana India Department of Electronics and Communication Engineering National Institute of Technology Hamirpur India

Performance of WDM ethernet passive optical network (EPON) with radio over fiber (rof) optical link has been analyzed with the use of dispersion compensating fiber (DCF) and fiber bragg grating (FBG) to compensate the dispersion and four wave mixing. With the use of DCF and FBG, performance of the system is improved by 77.67%. Results are compared with and without DCF + FBG for different optical power and fiber length. The BER, Q factor and eye diagrams have been obtained for evaluating the performance of the system.

关键词： Optical Network Unit Optical Line Termination BER EPON rof DCF FBG

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rof系统中三种传输方案的研究与分析

光通信技术 2012年第7期36卷 50-53页

作者：罗进文孙艳花王喆蒋占军兰州交通大学电子与信息工程学院兰州730070 东南大学移动通信国家重点实验室南京210096

对rof系统中基带传输、中频传输、射频传输三种传输方案进行详细的描述,分析色散作用对其传输的影响,并利用Opt i syst em仿真软件搭建了仿真模型,对三种结构进行仿真。仿真结果表明:基带传输系统受色散影响最小;中频传输系统次之;射频... 详细信息

对rof系统中基带传输、中频传输、射频传输三种传输方案进行详细的描述,分析色散作用对其传输的影响,并利用Opt i syst em仿真软件搭建了仿真模型,对三种结构进行仿真。仿真结果表明:基带传输系统受色散影响最小;中频传输系统次之;射频传输系统受色散影响最大。为减弱色散作用的影响,在射频传输方案中采用了单边带调制技术,频谱图和眼图验证了单边带调制具有较强的抗色散性能。

关键词： rof 基带传输中频传输射频传输

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rof中抑制非线性失真的调制技术研究

光通信技术 2012年第1期36卷 21-24页

作者：陈淑芬陈志北京理工大学光电学院北京100081

为了抑制rof系统中的非线性效应,提出了两种基于多臂-MZ调制器的调制技术,从理论上阐述了这两种技术的调制方式和原理,运用Optisystem仿真软件对基于这两种技术的rof系统分别进行了仿真分析,并与基于传统-MZ调制器的rof系统进行了比较... 详细信息

为了抑制rof系统中的非线性效应,提出了两种基于多臂-MZ调制器的调制技术,从理论上阐述了这两种技术的调制方式和原理,运用Optisystem仿真软件对基于这两种技术的rof系统分别进行了仿真分析,并与基于传统-MZ调制器的rof系统进行了比较。结果表明:这两种调制技术有效地抑制了rof系统的非线性效应,扩大了系统能接受的调制指数范围。

关键词：非线性多臂M-Z调制器 rof Optisystem

Analysis of the Impact of P-Ratio on BER, Q-Factor and OSNR of Radio over Fiber (rof) System

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Optics and Photonics Journal 2011年第4期1卷 179-188页

作者： Vishal Sharma Amarpal Singh Ajay K. Sharma 不详

The impact of p-ratio i.e. ratio of carrier power to total received RF power at control office (CO) on Bit error rate (BER), Q- performance parameter and Optical signal noise ratio (OSNR) of rof communication system is theoretically analyzed using angular full-linewidth at half maximum (FWHM) of Lorentzian shape for the RF oscillator in this paper. As reduction in Laser linewidth improves the performance of rof system, the RF oscillator linewidth at FWHM also plays an important role in improving the performance of rof system.

关键词： rof System OSNR Parameter BER Q-Parameter Fiber Dispersion Matlab 7.0

Study of OFDM Technique on rof Passive Optical Network

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Optics and Photonics Journal 2013年第2期3卷 217-224页

作者： Fahad Almasoudi Khaled Alatawi Mohammad A. Matin Department Electrical and Computer Engineering University of Denver Denver USA

The combination of radio over fiber (rof) and orthogonal frequency division multiplexing (OFDM) techniques has resulted in a high-data-rate at lower cost in the last mile of wireless networks. This paper investigates the use of the OFDM as a modulation technique for radio over fiber (rof) in passive optical network (PON). A laser source of 1550 nm wavelength was used with 100 km, 140 km and 288 km single mode fiber. In the OFDM-PON a passive optical splitter of ratio 1:2 is used to connect two optical network units (ONUs). A 10 Gbits/sec transmission bit rate is used to simulate the rof-OFDM-PON system. The proposed system can provide a flexible, cost effective and significant high data rate.

关键词： OFDM rof PON ONU rof-OFDM ISI ICI QAM

Ultra-Wideband rof System and Its Key Technologies

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ZTE Communications 2009年第3期7卷 16-20页

作者： Xu Kun,Yin Jie,Li Jianqiang(Beijing University of Posts and Telecommunications,Beijing 100876,P.R.China)

The microwave photonic technology-based Ultra-Wideband (UWB) Radio over Fiber (rof) system is an important solution to the future low-cost and high-performance ultra-wideband wireless access *** research work has been done in this field with abundant *** article introduces the rof system that is based on the all-optical vector modulation technology to further enhance signal’s spectrum efficiency;the full-duplex rof system that is based on the millimeter wave Phase-Shift Keying (PSK) modulation to greatly simplify base station structure and fiber layout;and the rof system that is based on multi-service mixed transmission to carry the service with both wired signal and several wireless *** article also presents an rof-based high-definition video transmission platform.

关键词： rof over Radio UWB Ultra-Wideband rof System and Its Key Technologies DAPSK

Design of Broadband rof PON for the Last Mile

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Communications and Network 2012年第4期4卷 269-277页

作者： Ayoob Alateeq Khaled Alatawi Fahad Almasoudi Mohammad A. Matin Department Electrical and Computer Engineering University of Denver Denver USA

An increase in the demand of broadband service has encouraged research and study to find a solution to offer an adequate amount of service. Living in this digital world with downloading video, voice or data leads us occasionally to have a shortage of bandwidth in the provided data. One of the solutions to cover the huge expected demand in the future is improving the communication systems by adding optical passive components to the Radio over Fiber (rof) system. This work is mainly to increase the bandwidth that allows the small and single consumer at the last mile. We have shown that by adding the 40-GHz mm-wave to the system, Bit-Error-Rate (BER) has increased while Q-factor has decreased.

关键词： WDM-PON MM-Wave Radio rof Q-Factor BER

Optimization of Millimeter-Wave rof System Structure

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ZTE Communications 2009年第3期7卷 25-30页

作者： Zhang Cheng,Chen Zhangyuan,Hu Weiwei(State Key Laboratory on Advanced Optical Communication Systems and Networks,Peking University,Beijing 100871,P.R.China)

Based on the seamless integration of broadband optical and wireless access networks,millimeter-wave Radio over Fiber (rof) technology is considered to be a promising solution for the next generation access networks which will provide high capacity and flexibility with low *** due to its large cost to realize,the system architecture needs to be *** the millimeter-wave optical generation part,optical heterodyning method can be introduced to generate a high-frequency millimeter-wave signal using a low-frequency signal *** the system efficiency can be greatly improved based on injection-locking of a semiconductor *** the downlink,the transmission distance can be greatly enhanced using single-sideband *** the single-mode modulation (single-sideband modulation) based on an injection-locked semiconductor laser is a much simpler *** the uplink,direct modulation of optical heterodyning signal can be used to realize the down-conversion of uplink millimeter-wave signal,which simplifies the receiver structure at the centre *** the wavelength division multiplexing millimeter-wave rof duplex system,the wavelength reuse in both downlink and uplink can save the wavelength resource in the whole system,which improves its efficiency.

关键词： rof Optimization of Millimeter-Wave rof System Structure mode Radio Wave EDFA dBm Figure DFB