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Volume 29 Issue 2
Jan.  2011
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Song Yang, Chang Yong-yu, Yang Da-cheng. Adaptive Modulation for MIMO Systems with Channel State Information Feedback Periods and Delays[J]. Journal of Electronics & Information Technology, 2007, 29(2): 301-304. doi: 10.3724/SP.J.1146.2005.00886
Citation: Song Yang, Chang Yong-yu, Yang Da-cheng. Adaptive Modulation for MIMO Systems with Channel State Information Feedback Periods and Delays[J]. Journal of Electronics & Information Technology, 2007, 29(2): 301-304. doi: 10.3724/SP.J.1146.2005.00886

Adaptive Modulation for MIMO Systems with Channel State Information Feedback Periods and Delays

doi: 10.3724/SP.J.1146.2005.00886
  • Received Date: 2005-07-22
  • Rev Recd Date: 2005-12-09
  • Publish Date: 2007-02-19
  • This paper investigates the impact of feedback period and delay on the performance of Multiple-Input Multiple-Output (MIMO) systems with adaptive modulation, and analyzes the characteristics of the equivalent parallel fading subchannels obtained by Singular Value Decomposition (SVD). Its receiver detection method and a simplified detection order are given as well. The results show that the correlation of the subchannels fading remains large within a certain period of time. System's performance can be improved significantly when the Zero Forcing (ZF) and Interference Cancellation (IC) techniques are adopted at the receiver.
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