首页 | 本学科首页   官方微博 | 高级检索  
     

基于离散傅立叶变换扩频的广义多载波系统收发机频域简化实现方法
引用本文:李明齐,芮赟,张小东,周秦英,刘广宇.基于离散傅立叶变换扩频的广义多载波系统收发机频域简化实现方法[J].高技术通讯,2009,19(1).
作者姓名:李明齐  芮赟  张小东  周秦英  刘广宇
作者单位:中国科学院上海微系统与信息技术研究所,上海,200050
基金项目:国家高技术研究发展计划(863计划),上海-法国罗阿大区基金 
摘    要:针对基于离散傅立叶变换扩频的广义多载波(DFT-S-GMC)系统的收发机时域实现方法复杂度较高的问题,提出了一种频域等效收发机实现方法;利用滤波器组各子带频率响应能量比原型滤波器的时域冲击响应能量集中的特性,提出了一种基于该频域实现方法的收发机简化实现方法和结构.仿真和分析表明,在多径信道下,采用频域简化实现结构的收发机与现有基于时域实现结构的收发机的误码率(BER)性能几乎相同,但与现有时域实现方法相比,采用频域简化实现方法,DFT-S-GMC系统发射机的实现复杂度可显著降低.

关 键 词:频分多址(FDMA)  滤波器组  广义多载波(GMC)  离散傅立叶变换(DFT)

A simplified frequency-domain implementation method for the transceiver of discrete Fourier transform spread generalized multi-carrier systems
Li Mingqi,Rui Yun,Zhang Xiaodong,Zhou Qinying,Liu Guangyu.A simplified frequency-domain implementation method for the transceiver of discrete Fourier transform spread generalized multi-carrier systems[J].High Technology Letters,2009,19(1).
Authors:Li Mingqi  Rui Yun  Zhang Xiaodong  Zhou Qinying  Liu Guangyu
Affiliation:Li Mingqi,Rui Yun,Zhang Xiaodong,Zhou Qinying,Liu Guangyu(Shanghai Institute of Micro-system & Information Technology,Chinese Academy of Sciences,Shanghai 200050)
Abstract:A frequency-domain equivalent implementation method was proposed for the transceiver of discrete Fourier transform spread generalized multi-carrier (DFT-S-GMC) systems with the aim of decreasing the implementation complexity. Based on the frequency-domain implementation method, a simplified implementation method for DFT-S-GMC transceivers and the DFT-S-GMC transceiver structure were also presented. The proposed method exploits the property that the energy of frequency response of each sub-band of the filter...
Keywords:frequency division multiple access (FDMA)  filter-bank  generalized multi-carrier (GMC)  discrete Fourier transform (DFT)  
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号