火力与指挥控制Issue(z1)：40-42,3.
一种降低OFDM系统峰均比的联合算法
Research of a Joined Algorithm to Reduce PAPR in OFDM System
马洪军 1康乐峰 1耿爽 1刘永洪 1舒领1
作者信息
- 1. 北方自动控制技术研究所，太原 030006
- 折叠
摘要
Abstract
In this paper,we propose a joined algorithm based on matrix transform andcompanding transform for reducing the Peak-to-Average Power Ratio (PAPR) of Orthogonal Frequency Division Multiplexing (OFDM). A unitary matrix is adapted to reduce the aperiodic auto-correlation of the transmitting sequence,and then we use companding function to improve the performance of PAPR further. In MPSK modulation,Computer simulation shows that the joined algorithm has better PAPR reduction and bit error rate (BER)performance compared with using companding transform only,and can reduce PAPR more effectively compared with using matrix transform only. In addition,a good trade-off between PAPR reduction and bit error rate performance can be achieved by adjusting the parameters of thepiecewise-line companding(PWLC)function.关键词
正交频分复用/非周期自相关函数/峰均比/矩阵变换/分段线性压扩Key words
orthogonal frequency division multiplexing/aperiodic auto correlation function/peak-to-average power ratio/matrix transform/piecewise-line companding分类
信息技术与安全科学引用本文复制引用
马洪军,康乐峰,耿爽,刘永洪,舒领..一种降低OFDM系统峰均比的联合算法[J].火力与指挥控制,2013,(z1):40-42,3.
