Distributed Compressive CSIT Estimation and Feedback for FDD Multi-User Massive MIMO Systems

Abstract

To fully utilize the spatial multiplexing gains or array gains of massive MIMO, the channel state information must be obtained at the transmitter side (CSIT). However, conventional CSIT estimation approaches are not suitable for FDD massive MIMO systems because of the overwhelming training and feedback overhead. In this paper, we consider multi-user massive… (More)
DOI: 10.1109/TSP.2014.2324991

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