| 降低OFDM信号峰均功率比的分段线性压扩变换 |
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| 引用本文： | 杨品露,胡爱群. 降低OFDM信号峰均功率比的分段线性压扩变换[J]. 通信学报, 2011, 0(8): 1-7 |
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| 作者姓名： | 杨品露 胡爱群 |
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| 作者单位： | 东南大学信息科学与工程学院; |
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| 基金项目： | 江苏省产学研联合创新基金资助项目(BY2009149)~~ |
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| 摘 要： | 为了降低OFDM信号的峰均功率比(PAPR),设计了一种分段线性压扩变换.对小幅度通过数乘变换进行线性放大,而对大幅度先利用数乘变换进行线性缩小,再对缩小后的幅度进行等量放大.得到的压扩变换是分段线性且连续的,用低复杂度的线性运算抑制峰均比,同时用分段的方法减小压扩对系统性能的影响.理论分析和仿真表明,通过数乘因子和增...
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| 关 键 词： | 正交频分复用 峰均功率比 压扩变换 |
Piecewise-linear companding transform for peak-to-average power ratio reduction of OFDM signals |
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| YANG Pin-lu,HU Ai-qun. Piecewise-linear companding transform for peak-to-average power ratio reduction of OFDM signals[J]. Journal on Communications, 2011, 0(8): 1-7 |
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| Authors: | YANG Pin-lu HU Ai-qun |
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| Affiliation: | YANG Pin-lu,HU Ai-qun(School of Information Science and Engineering,Southeast University,Nanjing 210096,China) |
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| Abstract: | In order to reduce the peak-to-average power ratio(PAPR) of orthogonal frequency division multiplexing(OFDM) signals,a piecewise-linear companding transform was proposed.Small amplitudes were multiplied by a scale factor,while large ones were not only multiplied by a scale factor but also added by a shift.The resulting companding transform was piecewise-linear and continuous.It can provide significant PAPR reduction performance with low compu-tational complexity,and has low influence on system performances ... |
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| Keywords: | orthogonal frequency division multiplexing peak-to-average power ratio companding transform |
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