Due to the explosive growth in the number of wireless devices and diverse wireless
services, such as virtual/augmented reality and Internet-of-Everything, next generation …

Random access (RA) or preamble collision is one of the crucial problems in massive internet-
of-things (IoT) at the network entry stage. Since a massive number of IoT nodes …

Being able to accommodate multiple simultaneous transmissions on a single channel, non-
orthogonal multiple access (NOMA) appears as an attractive solution to support massive …

Internet-of-Things (IoT) networks have recently emerged to provide massive connectivity for
many application scenarios and services. Additionally, developing spectrum-access …

Non-orthogonal multiple access (NOMA) assisted semi-grant-free (SGF) transmission has
recently received significant research attention due to its outstanding ability of serving grant …

This work proposes a random access system with uplink non-orthogonal multiple access
(NOMA), where users transmit their packets by using the space-time line code (STLC) to fully …

This correspondence paper investigates uplink non-orthogonal multiple access (NOMA) for
unmanned aerial vehicle base stations (UAV-BSs). Users under the service area of a UAV …

Machine-type communications (MTC) is an emerging technology that boosts the
development of the Internet of Things by providing ubiquitous connectivity and services …

This letter presents deep learning (DL) based non-orthogonal random access (NORA)
where multiple nodes utilizing the identical preamble simultaneously transmit data over the …

Grant‐free access has been identified as a potential solution to support massive machine‐
type communications by avoiding the high signaling overhead and latency issues of existing …