首页> 外文期刊>IEEE Transactions on Signal Processing >Codebook-Based Hybrid Precoding for Millimeter Wave Multiuser Systems
【24h】

Codebook-Based Hybrid Precoding for Millimeter Wave Multiuser Systems

机译:毫米波多用户系统的基于代码本的混合预编码

获取原文
获取原文并翻译 | 示例

摘要

In millimeter-wave (mmWave) systems, antenna architecture limitations make it difficult to apply conventional fully digital precoding techniques but call for low-cost analog radio frequency (RF) and digital baseband hybrid precoding methods. This paper investigates joint RF-baseband hybrid precoding for the downlink of multiuser multiantenna mmWave systems with a limited number of RF chains. Two performance measures, maximizing the spectral efficiency and the energy efficiency of the system, are considered. We propose a codebook-based RF precoding design and obtain the channel state information via a beam sweep procedure. Via the codebook-based design, the original system is transformed into a virtual multiuser downlink system with the RF chain constraint. Consequently, we are able to simplify the complicated hybrid precoding optimization problems to joint codeword selection and precoder design (JWSPD) problems. Then, we propose efficient methods to address the JWSPD problems and jointly optimize the RF and baseband precoders under the two performance measures. Finally, extensive numerical results are provided to validate the effectiveness of the proposed hybrid precoders.
机译:在毫米波(mmWave)系统中,天线架构的局限性使其难以应用常规的全数字预编码技术,但需要低成本的模拟射频(RF)和数字基带混合预编码方法。本文研究了具有有限RF链的多用户多天线mmWave系统下行链路的联合RF基带混合预编码。考虑了两个性能度量,即最大化系统的频谱效率和能量效率。我们提出了一种基于码本的射频预编码设计,并通过波束扫描过程获得了信道状态信息。通过基于密码本的设计,原始系统被转换为具有RF链约束的虚拟多用户下行链路系统。因此,我们能够将复杂的混合预编码优化问题简化为联合码字选择和预编码器设计(JWSPD)问题。然后,我们提出了有效的方法来解决JWSPD问题,并在两种性能指标下共同优化RF和基带预编码器。最后,提供大量数值结果以验证所提出的混合预编码器的有效性。

著录项

  • 来源
    《IEEE Transactions on Signal Processing》 |2017年第20期|5289-5304|共16页
  • 作者单位

    State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing, China;

    National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, China;

    National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, China;

    Interdisciplinary Centre for Security Reliability and Trust, University of Luxembourg, Luxembourg City, Luxembourg;

    State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing, China;

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

    Radio frequency; Precoding; Antennas; Downlink; Millimeter wave communication; Baseband;

    机译:射频;预编码;天线;下行;毫米波通信;基带;

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