OFDM发射机用霍夫曼编码结合裁剪滤波降低PAPR

2009 Innovative Technologies in Intelligent Systems and Industrial Applications Pub Date : 2009-07-25 DOI:10.1109/CITISIA.2009.5224185

F. Juwono, D. Gunawan

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引用次数: 21

摘要

正交频分复用(OFDM)技术存在一些缺陷。其中之一是高峰值平均功率比(PAPR)。本文提出了一种利用霍夫曼编码结合裁剪滤波(CF)来降低PAPR的方法。仿真结果表明，将Huffman和CF方法结合使用比单独使用更有效。通过使用52个子载波和QPSK调制，实现了约7 dB的PAPR降低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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PAPR reduction using Huffman coding combined with clipping and filtering for OFDM transmitter

Orthogonal Frequency Division Multiplexing (OFDM) technique has some drawbacks. One of them is high peak-to-average power ratio (PAPR). This paper proposes a technique to reduce the PAPR using Huffman coding combined with clipping and filtering (CF). The simulation results show that using the combination of Huffman and CF methods is more effective than using each method separately. By using 52 subcarriers and QPSK modulation, about 7 dB PAPR reduction is achieved.

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2009 Innovative Technologies in Intelligent Systems and Industrial Applications

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