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首页> 外文会议>2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications >Blind polarization oblique projection based inter-user interference cancellation in full duplex multiuser MIMO system
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Blind polarization oblique projection based inter-user interference cancellation in full duplex multiuser MIMO system

机译：全双工多用户MIMO系统中基于盲偏振斜投影的用户间干扰消除

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摘要

In full duplex (FD) multiuser MIMO system, multiple mobile stations (MSs) with FD transmission simultaneously access a given base station (BS), significant interuser interferences exist, limiting FD system performance. Existing methods addressing in the inter-user interference cancellation mostly need to know the interference channel state information and to decode and subtract the interference from the receiver. In this paper, we propose a blind polarization oblique projection based inter-user interference cancellation method without any prior information of the interference channel. This method merely utilizes the polarization state (PS) information and the autocorrelation matrix information of received signals at the downlink MS receivers to construct an oblique projection operator, which can be used to project the inter-user interference to the null space of the operator. Numerical results demonstrate that the proposed method can cancel the inter-user interference effectively when compared to the system with inter-user interference existing, and it performs more robust when the signal to noise ratio (SNR) and the receive antennas number is small.
机译：在全双工（FD）多用户MIMO系统中，具有FD传输的多个移动台（MS）同时访问给定的基站（BS），存在明显的用户间干扰，从而限制了FD系统的性能。解决用户间干扰消除的现有方法大多需要知道干扰信道状态信息，并解码和减去来自接收机的干扰。在本文中，我们提出了一种基于盲偏振斜投影的用户间干扰消除方法，该方法无需干扰信道的任何先验信息。该方法仅利用下行链路MS接收机处的接收信号的偏振态（PS）信息和自相关矩阵信息来构造斜投影算子，该算子可以用于将用户间干扰投影到算子的零空间。数值结果表明，与存在用户间干扰的系统相比，该方法可以有效地消除用户间干扰，当信噪比（SNR）和接收天线数较小时，该方法具有更强的鲁棒性。

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  • 来源
  • 会议地点 Montreal(CA)
  • 作者

    Wen Zhao; Chunyan Feng; Fangfang Liu; Caili Guo; Yao Nie;

  • 作者单位

    Beijing Laboratory of Advanced Information Networks, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China, 100876;

    Beijing Laboratory of Advanced Information Networks, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China, 100876;

    Beijing Laboratory of Advanced Information Networks, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China, 100876;

    Beijing Laboratory of Advanced Information Networks, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China, 100876;

    Beijing Laboratory of Advanced Information Networks, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, China, 100876;

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

    Interference cancellation; MIMO communication; Interference channels; Receivers; Silicon; Uplink;

    机译：干扰消除； MIMO通信；干扰信道；接收机；硅；上行链路；;

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