计算机工程2011，Vol.37Issue(4)：87-89,3.DOI:10.3969/j.issn.1000-3428.2011.04.031
基于傅里叶系数映射的OFDM系统性能分析
Performance Analysis of OFDM System Based on Fourier Coefficient Mapping
刘萍萍 1高宝建1
作者信息
- 1. 西北大学信息科学与技术学院,西安,710127
- 折叠
摘要
Abstract
Orthogonal Frequency Division Multiplexing(OFDM) has high Peak to Average Power Ratio(PAPR) problem.This paper proposes a new OFDM system based on Fourier coefficient mapping through studying the relation between OFDM modulation system and the Fourier series expansion of periodic signals.This method modulates the transmit data into periodic signals and takes part of the Fourier coefficients for OFDM modulation.Simulation results show that the PAPR of this new method can be reduced 3 dB compared with QPSK mapping and the BER performance is almost equal to QPSK mapping under the same bandwidth efficiency.关键词
正交频分复用/峰均比/傅里叶系数Key words
Orthogonal Frequency Division Multiplexing(OFDM)/ Peak to Average Power Ratio(PAPR)/ Fourier coefficient分类
信息技术与安全科学引用本文复制引用
刘萍萍,高宝建..基于傅里叶系数映射的OFDM系统性能分析[J].计算机工程,2011,37(4):87-89,3.
