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

• Yongjie Li,
• Rongfang Song,

Vol. 6, No. 2, February 27, 2012
10.3837/tiis.2012.02.008, Download Paper (Free):

• Time-corrected channel
• distributed compressed sensing
• zero-forcing beamforming
• MIMO

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.

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