›› 2011, Vol. 24 ›› Issue (4): 33-.

• 论文 • 上一篇    下一篇

基于循环延迟分集的差分酉空时频编码方案

李少辉,陈建春   

  1. (西安电子科技大学 电子工程学院,陕西 西安 710071)
  • 出版日期:2011-04-15 发布日期:2011-03-31
  • 作者简介:李少辉(1984-),男,硕士研究生。研究方向:MIMO-OFDM系统空时频编码技术。

Differential Unitary Space-Time-Frequency Modulation Based on Cyclic Delay Diversity

 LI Shao-Hui, CHEN Jian-Chun   

  1. (School of Electronic Engineering,Xidian University,Xi'an 710071,China)
  • Online:2011-04-15 Published:2011-03-31

摘要:

提出了一种应用于MIMO-OFDM系统的基于循环延迟分集的多流差分酉空时频编码方案。该方案利用了差分和酉矩阵技术、结合了正交空时码的分集优势,在不需要信道估计的情况下较大程度地改善了整个MIMO-OFDM系统的误码性能。

关键词: 差分酉空时频, 差分酉空时, MIMO-OFDM

Abstract:

A new multi-stream differential unitary space-time-frequency code scheme is proposed which is used in the MIMO-OFDM system and based on cyclic delay diversity.The scheme uses the differential and unitary matrix together with the advantage of the orthogonal space-time code,and thus the bit error rate performance of the whole MIMO-OFDM system is improved greatly without channel estimation.

Key words: Differential unitary space-time-frequency;differential unitary space-time;MIMO-OFDM

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