| 基于非对称限幅法降低OOFDM系统的PAPR |
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| 引用本文： | 陈琳,方勇,汪敏. 基于非对称限幅法降低OOFDM系统的PAPR[J]. 光通信研究, 2011, 0(6): 35-37 |
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| 作者姓名： | 陈琳 方勇 汪敏 |
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| 作者单位： | 1. 上海大学通信与信息工程学院特种光纤与光接入网重点实验室,上海200072;上海电力学院计算机与信息工程学院,上海200090
2. 上海大学通信与信息工程学院特种光纤与光接入网重点实验室,上海,200072 |
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| 基金项目： | 国家自然科学基金资助项目(61132004); 上海市重点学科项目(S30108); 上海市科委重点实验室项目(08DZ2231100) |
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| 摘 要： | 为降低OOFDM(光正交频分复用)系统中的高PAPR(峰均功率比),文章提出了一种基于非对称限幅法的抑制算法,其核心思想是通过门限电平去除信号负项并对信号峰值进行限幅,产生满足OOFDM系统要求的正、实基带信号,同时联合滤波技术避免较大PAPR的出现.仿真结果表明,该方法既能有效地改善PAPR特性,又能保证系统获得可靠...
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| 关 键 词： | 光正交频分复用 峰均功率比 非对称限幅法 |
Peak-to-average power ratio reduction in OOFDM systems using asymmetrically clipping technique |
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| Chen Lin,Fang Yong,Wang Min. Peak-to-average power ratio reduction in OOFDM systems using asymmetrically clipping technique[J]. Study on Optical Communications, 2011, 0(6): 35-37 |
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| Authors: | Chen Lin Fang Yong Wang Min |
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| Affiliation: | Chen Lin1,2,Fang Yong1,Wang Min1(1.School of Communication and Information Engineering,Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Shanghai University,Shanghai 200072,China,2.School of Computer and Information Engineering,Shanghai University of Electronic Power,Shanghai 200090,China) |
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| Abstract: | In this paper,an asymmetrically clipping technique is proposed for the reduction of the Peak-to-Average Power Ratio(PAPR) in Optical Orthogonal Frequency Division Multiplexing(OOFDM) systems.Its main idea is to generate positive and real baseband signals that satisfy the requirements of the OOFDM systems by deleting the negative terms of the signals and clipping their peak values with the threshold levels and at the same time avoid high PAPR in the OOFDM systems with the filtering technique.Simulation resul... |
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| Keywords: | OOFDM PAPR asymmetrically clipping technique |
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