Compressed sensing deals with the reconstruction of signals from sub-Nyquist samples by
exploiting the sparsity of their projections onto known subspaces. In contrast, this article is …

In this letter, direction-of-arrival (DOA) estimation of a mixture of coherent and uncorrelated
targets is performed using sparse reconstruction and active nonuniform arrays. The data …

This paper considers the direction of arrival (DOA) estimation of coherent and uncorrelated
targets by exploiting a flexible multiple input multiple output radar. First, the proposed radar …

Spatial channel covariance information can replace full knowledge of the entire channel
matrix for designing analog precoders in hybrid multiple-input-multiple-output (MIMO) …

Spatial channel covariance information can replace full channel state information for
designing analog precoders in millimeter wave (mmWave) hybrid MIMO systems. Hybrid …

The direction of arrival (DoA) estimation performance of three different coarray structures,
namely, the nested array, the coprime sampling array, and the sparse ruler array are …

In this paper we propose an adaptive multi user (MU) single-cell hybrid precoding strategy
that iteratively designs the precoders/combiners exploiting the reciprocity of time division …

Efficient communication in massive multiple-input multiple-output (MIMO) systems relies on
accurate channel estimation to optimize signal transmission efficiency, reliability, and …

This paper proposes a symmetric co-prime multiple input multiple output (MIMO)
configuration for direction of arrival (DOA) estimation, where the transmitter has 4 M-1 …

A method for channel estimation in wideband massive Multiple-Input Multiple-Output
systems using hybrid digital analog architectures is developed. The proposed method is …