We consider the problem of recovering two unknown vectors, w and x, of length L from their
circular convolution. We make the structural assumption that the two vectors are members of …

The massive amounts of machine-type user equipments (UEs) will be supported in the future
fifth generation (5G) networks. However, the potential large random access (RA) delay calls …

With the expected growth of machine‐to‐machine communication, new requirements for
future communication systems have to be considered. More specifically, the sporadic nature …

In the uplink machine-type communication (MTC) system, a combination of grant-free
transmission and non-orthogonal multiple access (NOMA) emerges to reduce the control …

Unsourced multiple access abstracts grantless simultaneous communication of a large
number of devices (messages) each of which transmits (is transmitted) infrequently. It …

We introduce a random access procedure where control and data information is transmitted
in the same “access” slot. The key idea is data-overlayed control signalling together with a …

Non-orthogonal multiple access (NOMA) is an emerging technology for massive connectivity
in machine-type communications (MTC). In code-domain NOMA, non-orthogonal spreading …

Activity detection in machine-type communication (MTC) has been recognized as an
effective way to support massive connectivity of the Internet-of-Things (IoT) devices …

We introduce a" one shot" random access procedure where users can send a message
without a priori synchronizing with the network. In this procedure a common overloaded …

The neighbor discovery paradigm finds wide application in Internet of Things networks,
where the number of active devices is orders of magnitude smaller than the total device …