J4 ›› 2011, Vol. 29 ›› Issue (6): 504-510.

• 论文 •    下一篇

多小区环境中基于动态功率分配的干扰安排算法

周志栋,谢显中,邵奇   

  1. 重庆邮电大学 宽带接入网络研究所|重庆 400065
  • 出版日期:2011-11-24 发布日期:2011-12-06
  • 作者简介:周志栋(1986—)|男|湖北枝江人|重庆邮电大学硕士研究生|主要从事个人通信研究|(Tel)86-13657662729(E-mail)zzd.com@gmail.com;谢显中(1966—)|男|四川通江人|重庆邮电大学教授|博士|硕士生导师|主要从事无线通信传输技术传输预处理、协作通信和感知无线电研究|(Tel)86-13708369531(E-mail)xiexianzhong.cn@gmail.com
  • 基金资助:

    国家自然科学基金资助项目(60872037);重庆市自然科学基金资助项目(CSTC 2010BB2415, CSTC 2011JJA40006);重庆市教委科学研究计划基金资助项目(KJ080508)

Research on Interference Alignment Based on Dynamic Power Allocation in Multi-Cell

ZHOU Zhi-dong,XIE Xian-zhong,SHAO Qi   

  1. Institute of Broadband Access Technologies, Chongqing University of Posts and Telecommunications, Chongqing 400065,China
  • Online:2011-11-24 Published:2011-12-06

摘要:

在多用户MIMO(Multiple-Input Multiple-Out put)干扰信道环境中,为了充分利用系统的总功率,将用户受到的干扰最大化地重叠,以提高系统性能。给出了MIMO干扰信道模型及子空间干扰安排算法分析;针对如何最大程度地利用系统功率问题提出了一种采用动态功率分配的干扰安排算法。仿真结果显示,该方案仅牺牲微小的系统容量,却显著地降低了系统的平均误码率和干扰功率,证明该算法较给定功率算法更有优势。

关键词: 干扰安排/对齐, MIMO干扰信道, 动态功率分配, 多小区

Abstract:

In multi-user MIMO(Multiple-Input Multiple-Out put) interference channel environment, in order to fully utilize the system's total power,disruption to the user to maximize overlapping, thereby improving system performance. The MIMO interference channel model and interference subspace scheduling algorithm analysis are given; to maximize the use of system power, a dynamic power allocation algorithm for interference arrangement is presented. Simulation results show that the program is only at a small expense of system capacity, but significantly reduces the system's average error rate and interference power, to prove that the algorithm is better than the algorithm given the power advantage.

Key words: interference alignment, multiple-input multiple-out put(MIMO) interference channel, dynamic power allocation, multi-cell

中图分类号: 

  • TN92