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 (1): 99-102.doi: 10.13190/j.jbupt.2014.01.022

• Reports • Previous Articles     Next Articles

New Space-Time Coded Transmission Scheme for X Channel

TIAN Xin-ji, LI Ya   

  1. School of Computer Science and Technology, Henan Polytechnic University, Henan Jiaozuo 454000, China
  • Received:2013-03-01 Online:2014-02-28 Published:2014-02-28

Abstract:

A new space-time coded transmission scheme is proposed for X channel with two antennas at each user. Each user employs rate-2 space-time block code (R2-STBC). The multi-user interference is eliminated by proper design of transmission method of R2-STBC and pre-coding at the transmitter. The feedback amount is reduced and the transmission efficiency is higher as well, compared with the existing scheme for the same scene. Simulation results demonstrate that the reliability of the proposed scheme significantly outperforms the existing scheme.

Key words: X channel, space-time block coding, pre-coding, multi-user interference, feedback amount, transmission efficiency

CLC Number: