Over the last few years, interference has been a major hurdle for successfully implementing
various end-user applications in the fifth-generation (5G) of wireless networks. During this …

The problem of providing massive connectivity in the Internet of Things (IoT) with a limited
number of available resources motivates nonorthogonal multiple access (NOMA) solutions …

Railway communications has attracted significant attention from both academia and
industries due to the booming development of railways, especially high-speed railways …

With the fast development of Internet of Things (IoT), the fifth generation (5G) wireless
networks need to provide massive connectivity of IoT devices and meet the demand for low …

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 …

In this paper, energy efficient resource allocation is considered for an uplink hybrid system,
where non-orthogonal multiple access is integrated into orthogonal multiple access (OMA) …

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 …

Massive multiple-input multiple-output (MIMO) opens up new avenues for enabling highly
efficient random access (RA) by offering abundance of spatial degrees of freedom. In this …

The explosive growth of machine-type communications (MTC) devices poses critical
challenges to the existing cellular networks. Therefore, how to support massive MTC devices …

As an important part of the real economy, manufacturing industry plays a major role in the
whole human society. Smart manufacturing has become a strategic issue for many …