首页> 外文会议>International Conference on Signal Processing(ICSP'06); 20061116-20; Guilin(CN) >Reducing the Peak-to-average Power Ratio of OFDM Signal by a Modified Selected Mapping Technique
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Reducing the Peak-to-average Power Ratio of OFDM Signal by a Modified Selected Mapping Technique

机译:通过改进的选择映射技术降低OFDM信号的峰均功率比

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摘要

In this paper, we propose a modified selected mapping technique to reduce the peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) system. In this technique, we choose a vector with low PAPR in each coset of a linear block codes as its coset leader, instead of the weight vector in conventional technique. And a sequence which is most likely to yield the lowest PAPR is chosen to transmit before Ifft by a decision algorithm. Simulation results show that the modified technique has good performance in PAPR reduction.
机译:在本文中,我们提出了一种改进的选择映射技术,以降低正交频分复用(OFDM)系统中的峰均功率比(PAPR)。在这项技术中,我们选择线性分组码的每个陪集中具有低PAPR的向量作为其陪集前导,而不是传统技术中的权重向量。通过决策算法选择最有可能产生最低PAPR的序列在Ifft之前发送。仿真结果表明,改进后的技术具有良好的PAPR降低性能。

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