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首页> 外文期刊>IEICE Transactions on Communications >Iterative MMSE-FDE/MUI Cancellation and Antenna Diversity for Frequency-Domain Filtered SC-FDMA Uplink
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Iterative MMSE-FDE/MUI Cancellation and Antenna Diversity for Frequency-Domain Filtered SC-FDMA Uplink

机译：频率域滤波SC-FDMA上行链路的迭代MMSE-FDE / MUI抵消和天线分集

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摘要

Broadband single-carrier frequency division multiple access (SC-FDMA) uplink using frequency-domain square-root Nyquist filtering is considered. The peak-to-average power ratio (PAPR) of filtered SC signals can be reduced by increasing the filter roll-off factor α. Furthermore, an additional frequency diversity gain can be obtained by making use of the excess bandwidth introduced by the transmit root Nyquist filtering. However, if the carrier-frequency separation is kept the same as in the case of α = 0, the adjacent users' signal spectra overlap with the desired users' spectrum and the multiuser interference (MUI) is produced. In this paper, we propose two frequency-domain iterative MUI cancellation schemes which can achieve the frequency diversity gain through spectrum combining. The achievable bit error rate (BER) and throughput performances are evaluated by computer simulation.
机译：考虑使用频域平方根奈奎斯特滤波的宽带单载波频分多址（SC-FDMA）上行链路。滤波后的SC信号的峰均功率比（PAPR）可以通过增加滤波器的滚降系数α来降低。此外，可以利用发射根奈奎斯特滤波引入的多余带宽来获得额外的频率分集增益。然而，如果保持与α＝ 0的情况相同的载波频率间隔，则相邻用户的信号频谱与期望的用户频谱重叠，并且产生多用户干扰（MUI）。在本文中，我们提出了两种频域迭代MUI抵消方案，它们可以通过频谱组合获得频率分集增益。通过计算机仿真评估可实现的误码率（BER）和吞吐量性能。

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  • 来源
    《IEICE Transactions on Communications》 |2011年第10期|p.2847-2856|共10页
  • 作者

    Suguru OKUYAMA; Kazuki TAKEDA; Fumiyuki ADACHI;

  • 作者单位

    The authors are with the Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University, Sendai-shi, 980-8579 Japan;

    rnThe authors are with the Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University, Sendai-shi, 980-8579 Japan;

    The authors are with the Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University, Sendai-shi, 980-8579 Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    SC-FDMA; MMSE-FDE; MUI cancellation; frequency-domain filter;

    机译：SC-FDMA;MMSE-FDE;取消MUI;频域滤波器;

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