吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (2): 531-537.doi: 10.13229/j.cnki.jdxbgxb201402040

• 论文 • 上一篇    下一篇

一种多小区多用户THP的干扰对齐方案

张金波, 袁超伟, 王秋才, 韩曦   

  1. 北京邮电大学 信息与通信工程学院, 北京 100876
  • 收稿日期:2013-02-23 出版日期:2014-02-01 发布日期:2014-02-01
  • 通讯作者: 袁超伟(1960- ),男,教授,博士生导师.研究方向:无线通信与信号处理.E-mail:yuancw2000@bupt.edu.cn E-mail:yuancw2000@bupt.edu.cn
  • 作者简介:张金波(1984- ),男,博士研究生.研究方向:无线通信与信号处理.E-mail:zhjinbo1984@gmail.com
  • 基金资助:

    国家自然科学基金项目(60872149).

Interference alignment scheme for multicell multiuser system through THP

ZHANG Jin-bo, YUAN Chao-wei, WANG Qiu-cai, HAN Xi   

  1. School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2013-02-23 Online:2014-02-01 Published:2014-02-01

摘要:

为了进一步提高多小区下行信道的容量,提出了一种多小区多用户THP的干扰对齐方案,该方案利用THP构造多小区传输模型,通过设计合适的反馈三角矩阵、前馈矩阵和接收处理矩阵,实现干扰对齐,有效地提升了各小区的容量。给出了该方案的设计准则、理论分析及仿真验证,与已有干扰对齐相比,该方案可以获得相同的自由度和更大的容量。

关键词: 信息处理技术, 干扰对齐, 多小区, 信道容量

Abstract:

In order to improve the multicell downlink capacity, an interference alignment scheme for multicell multiuser system through Tomlinson-Harashima Precoding (THP) is proposed. In this scheme, the appropriate feedback triangular matrices, feedforward matrices and receiving matrices are designed to align the interferences, thus effectively improving each cell's capacity. The design criteria of the proposed scheme are given. Theoretical analysis and simulation demonstrate that the proposed scheme can obtain the same degree of freedom (DOF) and more capacity compared with existing schemes.

Key words: signal processing technology, interference alignment, multi-cell, channel capacity

中图分类号: 

  • TN929.5

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