Golden code based transmission schemes and decoding methods for MIMO downlink system with finite-bit feedback

Sisi ZHENG; Haiquan WANG; Guobin LI; Tanming DAI

doi:10.11959/j.issn.1000-0801.2018262

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Golden code based transmission schemes and decoding methods for MIMO downlink system with finite-bit feedback

research and development | 更新时间：2024-06-05

- Golden code based transmission schemes and decoding methods for MIMO downlink system with finite-bit feedback
- Telecommunications Science Vol. 34, Issue 11, Pages: 31-40(2018)
- 作者机构：
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- DOI：10.11959/j.issn.1000-0801.2018262
  CLC： TN914
- Published Online：2018-11，
  
  Published：20 November 2018
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Sisi ZHENG, Haiquan WANG, Guobin LI, et al. Golden code based transmission schemes and decoding methods for MIMO downlink system with finite-bit feedback[J]. Telecommunications science, 2018, 34(11): 31-40.
DOI：

Sisi ZHENG, Haiquan WANG, Guobin LI, et al. Golden code based transmission schemes and decoding methods for MIMO downlink system with finite-bit feedback[J]. Telecommunications science, 2018, 34(11): 31-40. DOI： 10.11959/j.issn.1000-0801.2018262.

摘要

针对有限反馈多输入多输出下行系统，结合黄金码与预编码技术，提出一种新的预编码设计准则、码字选择方案及新的传输方案和相应的低复杂度解码方法。事实上，在充分利用黄金码能够克服信道深度衰落这一特性的基础上，对所选预编码码字进行重新构造，得到一个二重预编码矩阵，将其作为发送信号，从而能够实现线性解码。与此同时，针对传统的MIMO下行系统传输方案提出了ML和MMSE的联合解码方法，使其能通过一个门限值动态地调节解码复杂度。数值仿真结果证明了本文所提方案性能的优越性。

Abstract

For a MIMO downlink system with finite-bit feedback

combined with the Golden code and the precoding technology

a new precoding design criterion and its related codeword selection method

transmissionschemes and corresponding low complexity decoding methods were proposed.In fact

based on fully utilizing the characteristics that the Golden code could overcome the channel depth fading

a double precoding matrix was constructed as transmission signals by using the selected precoding codeword

so that the decoding complexity could be reduced to linear.In the meantime

a joint ML and MMSE decoding method was proposed for the traditional transmission scheme

which could dynamically adjust the decoding complexity based on a threshold.The numerical simulation results confirm the superiority of the proposed schemes and methods.

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references

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