The envisioned sixth-generation (6G) of wireless communications is expected to give rise to
the necessity of connecting very large quantities of heterogeneous wireless devices, which …

Multiple access technology plays an important role in communication systems, which can
enable different users to access the system efficiently and reliably. However, the …

Multiple access technology played an important role in wireless communication in the last
decades: it increases the capacity of the channel and allows different users to access the …

Unsourced random-access (U-RA) is a type of grant-free random access with a virtually
unlimited number of users, of which only a certain number K a are active on the same time …

We consider the unsourced random access problem on a Rayleigh block-fading AWGN
channel with multiple receive antennas. Specifically, we treat the slow fading scenario …

Sparse regression codes with approximate message passing (AMP) decoding have gained
much attention in recent times. The concepts underlying this coding scheme extend to …

We put forward a new algorithmic solution to the massive unsourced random access (URA)
problem, by leveraging the rich spatial dimensionality offered by large-scale antenna arrays …

In this paper, we investigate a joint device activity detection (DAD), channel estimation (CE),
and data decoding (DD) algorithm for multiple-input multiple-output (MIMO) massive …

This article considers the massive MIMO unsourced random access problem on a quasi-
static Rayleigh fading channel. Given a fixed message length and a prescribed number of …

We study the problem of unsourced random access (URA) over Rayleigh block-fading
channels with a receiver equipped with multiple antennas. We propose a slotted structure …