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 …

Massive machine-type communications (mMTC) or massive Internet of things (IoT) is one of
the key application scenarios of fifth generation (5G) and beyond cellular networks. Since …

Grant-free (GF) access has been one of the enablers for the various use cases in 5th
generation (5G) mobile system, especially for time-critical massive machine-type …

How to meet the demand for increasing number of users, higher data rates, and stringent
quality-of-service (QoS) in the beyond fifth-generation (B5G) networks? Cell-free massive …

Massive access is one of the main use cases of beyond 5G (B5G) wireless networks and
massive MIMO is a key technology for supporting it. Prior works studied massive access in …

Massive machine-type communications (mMTC) are poised to provide ubiquitous
connectivity for billions of Internet-of-Things (IoT) devices. However, the required low-latency …

Massive access, also known as massive connectivity or massive machine-type
communication (mMTC), is one of the main use cases of the fifth-generation (5G) and …

Cell-free (CF) massive multiple-input multiple-output (MIMO) systems, which exploit many
geographically distributed access points to coherently serve user equipment via spatial …

A novel grant-free random access scheme with a high success rate is proposed to support
massive access for machine-to-machine communications in massive multiple-input–multiple …

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 …