The low earth orbit (LEO) satellites have received extensive attention as an essential
supplement to the terrestrial network for supporting global Internet of Things (IoT) services …

Random access (RA) has recently been revisited and considered as a key technology for
the medium access control layer of the Internet of Things applications. Compared to other …

We consider an IoT-satellite terrestrial relay network providing access for a massive quantity
of IoT devices. In order to overcome the difficulties associated with random access over ultra …

This paper investigates the massive connectivity of low Earth orbit (LEO) satellite-based
Internet-of-Things (IoT) for seamless global coverage. We propose to integrate the grant-free …

Facing the dramatic increase of mobile devices and the scarcity of spectrum resources, grant-
free nonorthogonal multiple access (NOMA) emerges as an enabling technology for …

With the blooming of Internet-of-Things (IoT), we are witnessing an explosion in the number
of IoT terminals, triggering an unprecedented demand for ubiquitous wireless access …

Non-orthogonal multiple access (NOMA) techniques can recover collided signals
simultaneously transmitted from different users that select different target received signal …

In this article, we investigate the issue of massive access in a beyond fifth-generation (B5G)
multibeam low-Earth orbit (LEO) satellite Internet-of-Things (IoT) network in the presence of …

A reconfigurable intelligent surface (RIS) aided air-to-ground uplink non-orthogonal
transmission framework is investigated for next generation multiple access. Occupying the …

Direct-to-satellite Internet of Things (IoT) solutions have attracted a lot of attention from
industry and academia recently, as promising alternatives for large scale coverage of a …