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A New Compressive Feedback Scheme Based on Distributed Compressed Sensing for Time-Correlated MIMO Channel

  • Li, Yongjie (College of Telecommunications & Information Engineering, Nanjing University of Posts & Telecommunications) ;
  • Song, Rongfang (College of Telecommunications & Information Engineering, Nanjing University of Posts & Telecommunications)
  • Received : 2011.11.02
  • Accepted : 2012.01.27
  • Published : 2012.02.28

Abstract

In this paper, a new compressive feedback (CF) scheme based on distributed compressed sensing (DCS) for time-corrected MIMO channel is proposed. First, the channel state information (CSI) is approximated by using a subspace matrix, then, the approximated CSI is compressed using a compressive matrix. At the base station, the approximated CSI can be robust recovered with simultaneous orthogonal matching pursuit (SOMP) algorithm by using forgone CSIs. Simulation results show our proposed DCS-CF method can improve the reliability of system without creating a large performance loss.

Keywords

References

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