正交频分复用系统中改进的串行峰值抵消方法

doi:10.3969/j.issn.1000-1093.2020.03.013

兵工学报 ›› 2020, Vol. 41 ›› Issue (3): 526-533.doi: 10.3969/j.issn.1000-1093.2020.03.013

正交频分复用系统中改进的串行峰值抵消方法

张仕超¹，陈冲²，任帅²，文彬²，魏鹏²

(1.中国电子科技集团公司第十研究所, 四川成都 610036; 2.天津工业大学电子与信息工程学院，天津 300387)

收稿日期:2019-03-01 修回日期:2019-03-01 上线日期:2020-05-11
作者简介:张仕超（1985—），男，工程师，硕士研究生。E-mail:zhangsc09@126.com；
魏鹏（1986—），男，讲师。E-mail: wpwwwhttp@126.com

An Improved Serial Peak Cancellation Method for PAPR Suppression in OFDM System

ZHANG Shichao¹, CHEN Chong², REN Shuai², WEN Bin², WEI Peng²

(1.The 10th Research Institute of China Electronics Technology Group Corporation, Chengdu 610036, Sichuan, China;2.School of Electronics and Information Engineering, Tiangong University, Tianjin 300387, China)

Received:2019-03-01 Revised:2019-03-01 Online:2020-05-11

摘要/Abstract

摘要： 针对正交频分复用系统的高峰均比问题，提出一种改进的串行峰均比抑制方法。该方法通过信号幅度的上升沿和下降沿精确寻找超过门限的峰值点；基于串行处理的模式，利用加权的窗函数对信号高峰值进行有效抑制。仿真结果显示，与现有方法相比，改进方法能够有效抑制峰均比，同时精确的峰值搜索能够减少峰值抵消次数，从而降低算法的实现复杂度，有助于改善系统的误码率性能。

关键词: 正交频分复用, 峰均比, 串行峰值抵消, 实现复杂度, 误码率

Abstract: An improved serial PAPR suppression method is proposed for the high peak-to-average power ratio（PAPR） of orthogonal frequency division multiplexing（OFDM）system. The proposed method is used to find the peak point exceeding the threshold via the rising edge and falling edge of signal amplitude. In the proposed method, a weighted window is used to effectively suppress the high peak in a serial processing mode. Simulated results show that, compared to the existing methods, the improved method is capable of effectively suppressing the PAPR, while the number of peak cancellations is reduced by its accurate peak search, which helps to reduce the implementation complexity and enhance the bit error rate (BER) performance. Key

Key words: orthogonalfrequencydivisionmultiplexing, peak-to-averagepowerratio, serialpeakcancellation, implementationcomplexity, biterrorrate

中图分类号:

TN929.531

张仕超，陈冲，任帅，文彬，魏鹏. 正交频分复用系统中改进的串行峰值抵消方法[J]. 兵工学报, 2020, 41(3): 526-533.

ZHANG Shichao, CHEN Chong, REN Shuai, WEN Bin, WEI Peng. An Improved Serial Peak Cancellation Method for PAPR Suppression in OFDM System[J]. Acta Armamentarii, 2020, 41(3): 526-533.

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正交频分复用系统中改进的串行峰值抵消方法

An Improved Serial Peak Cancellation Method for PAPR Suppression in OFDM System

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