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DFT扩频广义多载波系统的SINR性能分析 被引量：4

SINR performance analysis of DFT spread generalized multi-carrier system
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摘要 针对离散傅立叶变换扩频的广义多载波系统(DFT-S-GMC),提出一种信干噪比(SINR)的性能分析方法。该方法基于DFT-S-GMC收发机频域等效的简化实现结构,利用信道频率响应和噪声方差,接收端采用最小均方误差(MMSE)均衡,分析得到了SINR的闭合表达式,并考虑了信道均衡后时域复用的数据块(IFBT符号)之间的残余干扰,而且,本方法很容易扩展到一发多收的情况。仿真表明,多径信道下基于该等效SINR的误块率(BLER)性能曲线能很好地匹配系统在高斯白噪声信道下的性能曲线。 A signal-to-interference-plus-noise ratio （SINR） performance analysis method of discrete fourier transform spread generalized multi-carder （DFT-S-GMC） system was proposed. The closed-form SINR expression based on simpli- fied frequency-domain equivalent implementation structure and MMSE equalization for receiver is derived by channel frequency response and noise variance, considering inter-block （IFBT symbol） residual interference multiplexed in time domain. Moreover, it can be easily extended to multi-receive antenna. By simulation results, it is shown that with proposed equivalent SINR, the BLock error rate （BLER） performance of DFT-S-GMC over slow fading channel is well matched with that over AWGN channel.
作者 芮赟 李明齐 周秦英 张小东 易辉跃 胡宏林
机构地区 中国科学院上海微系统与信息技术研究所
出处 《通信学报》 EI CSCD 北大核心 2008年第6期51-56,共6页 Journal on Communications
基金 国家高技术研究发展计划(“863”计划)基金资助项目(2006AA01Z280) 上海市科学技术委员会基金资助项目(207DZ05018)~~
关键词 DFT-S-GMC 信干噪比 滤波器组 频域结构 DFT-S-GMC signal-to-interference-plus-noise ratio filter-bank frequency-domain structure
分类号 TN911.3 [电子电信—通信与信息系统] TN911.6 [电子电信—通信与信息系统]
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参考文献9

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共引文献7

同被引文献22

  • 1李明齐,张小东,李元杰,周斌.基于DFT扩频的广义多载波频分多址上行链路传输方案——DFT-S-GMC[J].电信科学,2006,22(6):5-10. 被引量：8
  • 2王少波,高振明,庄华伟.滤波多音系统中的自适应算法性能分析[J].计算机应用,2006,26(8):1791-1792. 被引量：1
  • 3朱维红,张丙峰,高振明.滤波多音调制系统容量及滤波器设计[J].山东大学学报（理学版）,2007,42(1):49-54. 被引量：1
  • 4VALIDYANATHAN P P. Discrete multitone modulation with principay component filter banks[J]. IEEE Transactions on Circuits and Systems-Ⅰ: Fundamental Theory and Applications, 2002, 49(10):1397-1411.
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通信学报
2008年 第6期

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