PAPR reduction method for SFBC MIMO-OFDM systems

SHA Yi; CHEN Jun-xin; WANG Guang-xing

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PAPR reduction method for SFBC MIMO-OFDM systems

更新时间：2024-10-14

- PAPR reduction method for SFBC MIMO-OFDM systems
- Vol. 30, Issue 10, Pages: 114-117(2009)
- 作者机构：
  
  东北大学通信与信息系统
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN919.3
- Published：2009
- 稿件说明：
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SHA Yi, CHEN Jun-xin, WANG Guang-xing. PAPR reduction method for SFBC MIMO-OFDM systems[J]. 2009, 30(10): 114-117.
DOI：

SHA Yi, CHEN Jun-xin, WANG Guang-xing. PAPR reduction method for SFBC MIMO-OFDM systems[J]. 2009, 30(10): 114-117. DOI：

摘要

高峰均比已成为SFBCMIMO-OFDM系统推向实用的主要障碍。针对此问题

提出了一种SFBCMIMO-OFDM系统峰均比抑制的新方法

多相旋转交换PIP(polyphase inversion and permutation)方法。该方法将所有发射天线看作一个整体

通过对序列进行2次分割、旋转、交换

既充分利用了各天线子载波之间的共轭和圆周移位特性

又可以结合FFT的运算特性

最大程度上降低了算法复杂度。仿真结果证明了该方法的有效性。

Abstract

The high PAPR is the major drawback of SFBC MIMO-OFDM systems to its practicability. To deal with this problem

a novel method was proposed to reduce the PAPR of SFBC MIMO-OFDM systems. It was called PIP（polyphase inversion and permutation） method. The method treated all transmit antennas as a whole. By dividing

rotating

and shifting the sequence twice

the method fully made use of the character of conjugation and shifting of all the antennas’ sub-carriers. Meanwhile

PIP method could reduce the complexity of calculation by using the character of IFFT. The simulation result proves the method to be efficient.

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