A Peak Cancellation Method Close to Optimal Performance for PAPR Reduction in LTE-A System

PAN Wen-sheng; ZHU Xiao-dong; SHAO Shi-hai; TANG You-xi

doi:10.3969/j.issn.0372-2112.2014.10.005

您当前的位置：

首页 >

文章列表页 >

A Peak Cancellation Method Close to Optimal Performance for PAPR Reduction in LTE-A System

更新时间：2025-07-16

- A Peak Cancellation Method Close to Optimal Performance for PAPR Reduction in LTE-A System
- Acta Electronica Sinica Vol. 42, Issue 10, Pages: 1901-1906(2014)
- 作者机构：
  
  电子科技大学通信抗干扰国家级重点实验室,四川,成都,611731
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.61101034, No.61001087, No.61271164)
- DOI：10.3969/j.issn.0372-2112.2014.10.005
  CLC： TN919.72
- Published：2014
- 稿件说明：
移动端阅览
PAN Wen-sheng, ZHU Xiao-dong, SHAO Shi-hai, et al. A Peak Cancellation Method Close to Optimal Performance for PAPR Reduction in LTE-A System[J]. Acta Electronica Sinica, 2014, 42(10): 1901-1906.
DOI：

PAN Wen-sheng, ZHU Xiao-dong, SHAO Shi-hai, et al. A Peak Cancellation Method Close to Optimal Performance for PAPR Reduction in LTE-A System[J]. Acta Electronica Sinica, 2014, 42(10): 1901-1906. DOI： 10.3969/j.issn.0372-2112.2014.10.005.

摘要

最优化限幅滤波法(OICF)是一种最优化的限幅类技术

它可以在满足峰均比(PAPR)要求下实现信号矢量误差的最小化

但其需要进行最优化求解

其计算复杂度与信号的子载波总数的立方成正比.针对OICF复杂度高的缺点

考虑LTE-Advanced多载波信号

提出了一种基于峰值对消降低PAPR的方法(PC-PAPR).PC-PAPR在峰值对消前

将对消脉冲通过一个零相位滤波器

滤除带外泄漏的同时

保证对消脉冲的相位不发生改变.理论分析表明

PC-PAPR计算复杂度降至与信号的子载波总数成正比

数字仿真结果表明PC-PAPR降低PAPR的性能与OICF性能差异小于0.06dB.

Abstract

Optimized iterative clipping filtering (OICF) is an optimal algorithm for peak to average power ratio (PAPR) reduction

since it can achieve the required PAPR reduction with minimum in-band distortion.However

OICF needs to solve a convex optimization problem with

(

) complexity

where N is the number of subcarriers.To reduce the complexity

a method based on the peak cancellation (PC-PAPR) is proposed.This method uses a zero-phase filter

which length is

to modify the spectrum of the peak pulse.After the filter

the phase of the peak pulse is not changed

and the out-of-band spectrum of the pulse is zero.Results of analysis show that the computational comp

lexity of the PC-PAPR is

(

)

and simulation results show that the difference of PAPR-reduction performance between PC-PAPR and OICF is less than 0.06dB.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research on Recovery of Clipping and HPA Nonlinear Distortion Based on Compressive Sensing in OFDM Systems

Low Complexity SLM Algorithm Based on Cyclic Shift and Blind Detection in SFBC MIMO-OFDM System

Related Author

YANG Lin

SONG Kun

YANG Lin

HU Wu-jun

HE Xiang-dong

Related Institution

Key Laboratory of National Communication Technology, University of Electronic Science and Technology

Science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory, The 54 th Research Institute of China Electronics Technology Group Corporation

Key Laboratory of National Communication Technology University of Electronic Science and Technology Chengdu Sichuan China

Science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory The 54 th Research Institute of China Electronics Technology Group Corporation Shijiazhuang Hebei China

National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China

⁰