J4 ›› 2011, Vol. 38 ›› Issue (6): 134-139.doi: 10.3969/j.issn.1001-2400.2011.06.022

• Original Articles • Previous Articles     Next Articles

Quasi orthogonal group SFTBC transmit scheme with linear constellation precoding

ZHAN Jinlong;LU Jianjun;LU Guangyue   

  1. (Dept. of Telecommunication Eng., Xi'an Inst. of Posts and Telecommunications, Xi'an  710061, China)
  • Received:2011-03-12 Online:2011-12-20 Published:2011-11-29
  • Contact: ZHAN Jinlong E-mail:zhanjinlong@xupt.edu.cn

Abstract:

Based on LCP(Linear Constellation Precoding), a novel multi-antenna transmit scheme is proposed to make the quasi orthogonal group SFTBC obtain full frequency diversity. In the scheme, LCP and quasi orthogonal group SFTBC are cascaded, thus making SFTBC based on quasi-orthogonal design obtain full frequency diversity and space diversity. Both theoretical analysis of pair-wise error probability and BER simulation results are given. Simulation results show that the proposed scheme has a performance gain of at least 1dB compared to traditional ones.

Key words: linear constellation precoding, group space-frequency-time block code, orthogonal frequency division multiplexing, frequency diversity

CLC Number: 

  • TN911.21