This paper considers the problem of beam alignment in a cell-free massive MIMO
deployment with multiple access points (APs) and multiple user equipments (UEs) …

In order to degrade the inter-user interference caused by the same beam selected for
different users in mmWave massive MIMO systems, this paper proposes a joint beam …

When conventional phase shifter based arrays are used in millimeter-wave systems, the
angle of departure (AoD) and angle of arrival (AoA) estimates are obtained through high …

This paper proposes beam failure prediction to recover from inevitable link failures in beam-
based mmWave communication proactively. The proposed system consists of two …

Large antenna systems powered by millimeter-wave signals are a key enabling technology
in 5 G and beyond systems. Exploiting the approximate sparse nature of millimeter channel …

It is well-established that mobility is a prominent challenge for beam-based communication.
Despite the beam management functions specified by 3GPP to facilitate beam-based …

Millimeter-wave frequencies offer abundant spectrum and high data rates, but their use
comes at the cost of a severe propagation loss. The loss can be alleviated by establishing …