J4 ›› 2010, Vol. 37 ›› Issue (2): 192-196.doi: 10.3969/j.issn.1001-2400.2010.02.003

• 研究论文 • 上一篇    下一篇



  1. (西安电子科技大学 综合业务网理论及关键技术国家重点实验室,陕西 西安  710071)
  • 收稿日期:2009-02-27 出版日期:2010-04-20 发布日期:2010-06-03
  • 通讯作者: 李钊
  • 作者简介:李钊(1981-),男,讲师,博士,E-mail: zli_19912@126.com.
  • 基金资助:


Multiuser MIMO downlink transmission strategy using independent component analysis

LI Zhao;YANG Jia-wei;YAO Jun-liang;CHEN Ting   

  1. (State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071, China)
  • Received:2009-02-27 Online:2010-04-20 Published:2010-06-03
  • Contact: LI Zhao



关键词: 多用户, MIMO系统, 广播信道, 信道状态信息, 反馈, 独立分量分析


We introduce a multiuser MIMO (MU-MIMO) downlink transmission strategy to solve the transmission problem for MIMO broadcast channels without available channel state information (CSI). By use of the scheme, base station (BS) selects a set of mobile stations (MS) and communicate simultaneously. Each transmit antenna at BS corresponds to an MS in the active user subset. The MS applies independent component analysis (ICA) algorithm to demix different components from the received mixing signals and identifies its own. Simulation results show that by applying the proposed strategy, MU-MIMO downlink transmission can be implemented successfully without CSI.

Key words: multiuser, MIMO system, broadcast channels, channel state information, feedback, independent component analysis