The remarkable growth of wireless data traffic in recent times has driven the need to explore
suitable regions in the radio spectrum to meet the projected requirements. In pursuance of …

Massive multiple‐input multiple‐output technology has been considered a breakthrough in
wireless communication systems. It consists of equipping a base station with a large number …

We present a method for estimating conditionally Gaussian random vectors with random
covariance matrices, which uses techniques from the field of machine learning. Such models …

Precoding/combining and large antenna arrays are essential in millimeter wave (mmWave)
systems. In traditional MIMO systems, precoding/combining is usually done digitally at …

The fifth-generation (5G) of cellular networks and beyond requires massive connectivity,
high data rates, and low latency. Millimeter-wave (mmWave) communications is a key 5G …

A system and method are described which enable planned evolution and obsolescence of
multiuser wireless spectrum. One embodiment of such a system includes one or multiple …

Massive multiple-input-multiple-output (MIMO) systems use few hundred antennas to
simultaneously serve large number of wireless broadband terminals. It has been …

Millimeter wave (mmWave) technologies promise to revolutionize wireless networks by
enabling multi-gigabit data rates. However, they suffer from high attenuation, and hence …

This paper investigates a channel estimator based on Gaussian mixture models (GMMs) in
the context of linear inverse problems with additive Gaussian noise. We fit a GMM to given …

Beamforming is vital to overcome the high attenuation in wireless millimeter-wave networks.
It enables nodes to steer their antennas in the direction of communication. To cope with …