Robust transceiver design for K-pairs quasi-static MIMO interference channels via semi-definite relaxation

  • Authors:

  • Eddy Chiu;Vincent K. N. Lau;Huang Huang;Tao Wu;Sheng Liu

  • Affiliations:

  • Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong;Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong;Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong;Huawei Technologies, Co. Ltd., China;Huawei Technologies, Co. Ltd., China

  • Venue:
  • IEEE Transactions on Wireless Communications
  • Year:
  • 2010

Quantified Score

Hi-index 0.01

Visualization

Abstract

In this paper, we propose a robust transceiver design for the K-pair quasi-static MIMO interference channel. Each transmitter is equipped with M antennas, each receiver is equipped with N antennas, and the kth transmitter sends Lk independent data streams to the desired receiver. In the literature, there exist a variety of theoretically promising transceiver designs for the interference channel such as interference alignment-based schemes, which have feasibility and practical limitations. In order to address practical system issues and requirements, we consider a transceiver design that enforces robustness against imperfect channel state information (CSI) as well as fair performance among the users in the interference channel. Specifically, we formulate the transceiver design as an optimization problem to maximize the worst-case signal-to-interference-plus-noise ratio among all users. We devise a low complexity iterative algorithm based on alternative optimization and semi-definite relaxation techniques. Numerical results verify the advantages of incorporating into transceiver design for the interference channel important practical issues such as CSI uncertainty and fairness performance.