Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2014, Vol. 37 ›› Issue (6): 23-27.doi: 10.13190/j.jbupt.2014.06.005

• Papers • Previous Articles     Next Articles

New Interference Cancellation Method for MIMO Interference Channel

LI Ya, TIAN Xin-ji, LI Jing   

  1. School of Computer Science and Technology, Henan Polytechnic University, Henan Jiaozuo 454000, China
  • Received:2014-03-27 Online:2014-12-28 Published:2014-10-17

Abstract:

An interference cancellation method based on space-time code is proposed for 3-user multi-input multi-output interference channel. Each user employs rare-2 space-time block code. The multi-user interference at the third receiver is eliminated through the introduction of zero matrix at each user' transmit signals. The multi-user interference at the other two receivers is eliminated through pre-coding for codewords and unidirectional cooperative link. Compared with the existing scheme for the same scene, the proposed scheme reduces feedback amount and offers full diversity gain, while keeping the same transmission efficiency. Simulation results demonstrate that the proposed scheme outperforms the existing scheme for the same scene.

Key words: multi-input multi-output, interference channel, space-time block code, multi-user interference, pre-coding

CLC Number: