The Fifth Generation (5G) of wireless networks introduced support to Machine-Type Communications (MTC), which is the connectivity solution for Internet Things (IoT) applications. MTC split into two different categories: massive (mMTC) and critical (cMTC). Current 5G standards technologies are not capable fully satisfying requirements both mMTC cMTC use cases, thus industry academia have already...

The fifth generation (5G) and beyond networks promote new business opportunities not only for mobile network operators but also industrial verticals. However, most currently deployed 5G are public developed generalized purposes, limiting their adoption various fields demanding specialized quality of service. trend in applying to requires a design paradigm shift calling customized structure, res...

This paper considers the application of widely linear (WL) receivers in an uplink multi-user system using real-valued modulation schemes, where cellular base station (BS) with multiple antennas provides connectivity for randomly deployed single-antenna users. The targeted use case is massive machine type communication (mMTC) grant-free access uplink, network required to host a large number low ...

Mobile devices are pervasive today; multimedia applications executing on smartphones and tablets are also commonplace. Rich content involving images, voice, audio, video, graphics, and animations is a part and parcel of the mobile experience for a wide range of applications ranging from entertainment to crisis response. The large volumes of information being captured, exchanged, disseminated th...

The 5th generation mobile communication system (5G), provided by network operators (MNOs), is expected to dramatically improve three characteristics, namely, "enhanced Mobile Broadband (eMBB)," "Ultra-Reliable and Low Latency Communications (URLLC)," "massive Machine Type Communication (mMTC)," compared conventional systems. introduction of 5G services in railways lead the new applications that...

Being able to accommodate multiple simultaneous transmissions on a single channel, non-orthogonal access (NOMA) appears as an attractive solution support massive machine type communication (mMTC) that faces number of devices competing the limited shared radio resources. In this paper, we first analytically study throughput performance NOMA-based random (RA), namely NOMA-RA. We show while increa...