The use of multiple antennas for wireless communication systems has gained overwhelming
interest during the last decade-both in academia and industry. Multiple antennas can be …

Complex-valued signals occur in many areas of science and engineering and are thus of
fundamental interest. In the past, it has often been assumed, usually implicitly, that complex …

This paper considers a network consisting of a multiple antenna array access point serving
multiple single antenna downlink users with the assistance of a reconfigurable intelligent …

This paper provides a complete characterization of the boundary of an achievable rate
region, called the Pareto boundary, of the single-antenna Z interference channel (Z-IC) …

Single-carrier frequency division multiple access (SC-FDMA) has appeared to be a
promising technique for high data rate uplink communications. Aimed at SC-FDMA …

The use of proper, ie, circularly symmetric, complex Gaussian signals for all users is known
to be optimal in broadcast channels with proper complex Gaussian noise from an …

A new autoregressive moving average (ARMA) predictor for widely linear systems is
presented by using the innovations algorithm and under an improper treatment. The main …

In this paper, we propose a novel linear transmit precoding strategy for multiple-input,
multiple-output (MIMO) systems employing improper signal constellations. In particular …

Two main lines of approach can be identified in the recent literature on improper signals and
widely linear operations. The augmented complex formulation based on the signal and its …

In this paper, we address channel-impulse response (CIR) estimation in multicarrier systems
with phase distortion, namely, phase noise (PHN) and carrier frequency offset (CFO). The …