基于ACE POCS和峰值裁剪的联合PAPR降低方法

2010 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery Pub Date : 2010-10-10 DOI:10.1109/CYBERC.2010.73

Qingwen Han, Xiaoping Zeng, Lingqiu Zeng, Tao Wang

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引用次数: 6

摘要

正交频分复用(OFDM)调制系统的高峰均功率比(PAR)会显著降低功率效率和性能。本文研究了基于IEEE 802.11a的OFDM系统中出现的降低峰均功率比(PAPR)的问题。提出了一种低复杂度的PAPR降低算法。提出了一种改进的ACE-POCS方法，并给出了其性能的仿真结果。该算法采用改进的ACE-POCS作为降低PAPR的首选方法，而裁剪作为最后手段。基于OFDM的系统仿真表明，该算法可以有效地降低系统的PAPR，且计算复杂度较低，但误码率性能略有下降。

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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Joint PAPR Reduction Method Base on ACE POCS and Peak Clipping

The high peak-to-average power ratio (PAR) in Orthogonal Frequency Division Multiplexing (OFDM) modulation systems can significantly reduce power efficiency and performance. This paper examines the problem of reducing the peak-to-average power ratio (PAPR) occurring in OFDM systems based on IEEE 802.11a. A low complexity PAPR reduction algorithm is proposed. A revised ACE-POCS method is put forward and the simulation results for its performance are given. Proposed algorithm used revised ACE-POCS as the preferred method to reduce PAPR while clipping is used as last resort. System simulation based on OFDM shows that proposed algorithm can reduce system PAPR efficiently with low calculation complexity at the cost of Bit-Error-Ratio (BER) performance degradation slightly.

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来源期刊

2010 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery

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