… MIMO-OFDM systems. This paper proposes a twostage channel estimation algorithm based
on sparsity … The burst-sparsity property of MIMO channels must also be taken into account [17…

… In order to further improve the performance of our proposal, we introduce a sparsity-inducing …
A key technology for 5G is massive MIMO systems, where the base stations (BSs) of the …

… the sparsity features in the grantfree SCMA transmission, we establish its mathematical model
where the degree of sparsity … In addition, user’s activity demonstrates the burst and sparse …

… By leveraging the inherent sparsity of the mmWave MIMO channel in the angular domain, …
domain) of mmWave massive MIMO channels usually appear in bursts due to the physical …

… However, if mmWave massive MIMO systems employ the traditional fully-digital structure, …
mmWave massive MIMO systems to reduce the number of RF chains [2]. Thanks to the sparsity …

… , massive MIMO is usually integrated into mmWave communications to form beams for
directional signal transmission [3], [4]. However, the powerful fully-digital MIMO … of burst training …

… Notably, this implies that even small, say 1kBit data bursts, result in a huge bandwidth … for
the massive MIMO case is the flat fading case. The standard setting for the massive MIMO case …

… a problem of recovering a simultaneously sparse-group and low rank … Due to the burst
characteristic of IoT applications, only a … Caire, “Massive MIMO pilot decontamination and channel …

… The proposed algorithm, due to carefully selected prior, captures not only the overlapped
burst sparsity across time but also the block sparsity due to multi-user antennas. We also …

… sparse approximation, the SCS theory has drawn plenty of attention for the high recovery
accuracy in sparse approximation and robustness to large sparsity … occurs in a burst manner in …