A robust interference alignment scheme for the MIMO X channel

  • Authors:
  • Hui Shen;Bin Li;Yi Luo;Feng Liu

  • Affiliations:
  • Dept. Wireless Research, Huawei Technologies, ShenZhen, China;Dept. Wireless Research, Huawei Technologies, ShenZhen, China;Dept. Wireless Research, Huawei Technologies, ShenZhen, China;Dept. Wireless Research, Huawei Technologies, ShenZhen, China

  • Venue:
  • APCC'09 Proceedings of the 15th Asia-Pacific conference on Communications
  • Year:
  • 2009

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Abstract

In this paper, we propose a new interference alignment (IA) scheme designing jointly the linear transmitter and receiver for the 2 user MIMO X channel system, using minimum total mean square error criterion, subject to each transmitter power constraint. Considering the channel estimation errors, we further propose a robust design for the IA. Iterative method is used to obtain the optimal solutions. Simulation results show that the proposed schemes outperform the existing with fast convergence.