• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>IEEE International symposium on Personal, Indoor, and Mobile Radio Communications >Evaluation of massive MIMO systems using time-reversal beamforming technique
【24h】

Evaluation of massive MIMO systems using time-reversal beamforming technique

机译：使用时间反转波束成形技术评估大规模MIMO系统

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, we investigate the performance of a massive MIMO system using the time-reversal beamforming technique. The massive MIMO channels are simulated with ray-tracing at 3.5 GHz with a 200 MHz-bandwidth. We use a 64-element uniform cylindrical array as base station (BS) and we equip two users with single omnidirectional antennas. By applying convenient weights to the emitted signals, we expect to improve the useful signal level by both classic beamforming and time-focusing gains, while decreasing the inter-user interferences (IUI). The performance of the system is evaluated by the signal-to-noise (SNR) and signal-to-interference-plus-noise ratio (SINR) in a 10-path channel with line-of-sight (LOS). We compare the performance with the case where the BS is equipped with an omnidirectional antenna and without pre-processing. In this situation, the results show an SNR improvement up to 25 dB yet the output SINR is limited by the inter-symbol interferences (ISI), especially caused by the ground reflection.
机译：在本文中，我们使用时间反向波束成形技术研究了大型MIMO系统的性能。大规模MIMO通道在3.5 GHz的光线跟踪下以200 MHz的带宽进行了仿真。我们使用64个元素的均匀圆柱阵列作为基站（BS），并且为两个用户配备了单个全向天线。通过对发射的信号施加方便的权重，我们期望通过经典的波束成形和时间聚焦增益来改善有用的信号电平，同时减少用户间干扰（IUI）。该系统的性能由具有10条通道的视线（LOS）的信噪比（SNR）和信噪比+噪声比（SINR）评估。我们将性能与BS配备了全向天线且未进行预处理的情况进行了比较。在这种情况下，结果表明SNR最高可提高25 dB，但输出SINR受符号间干扰（ISI）的限制，尤其是由地面反射引起的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号