Massive Internet of Things (mIoT) is a major use case of the fifth generation (5G) wireless
systems. mIoT aims to support a large number of connection requests from IoT devices …

The grant-free non-orthogonal multiple access (GF-NOMA) system, in which users
autonomously transmit uplink data signals without carrying out a complicated random …

With the advantages of low signaling overhead and latency, grant-free random access
(GFRA) becomes a promising technology for supporting massive machine-type …

As a building block toward a simple and scalable solution for massive random access, we
introduce collision-resolution algorithms using successive interference cancellation (SIC) …

Abstract 5G NR aims to enable the high density of Internet of Things (IoT), around one
million (10 6) connections per square kilometer, through the Massive Machine Type …

The emergence of various commercial and industrial Internet of Things (IoT) devices has
brought great convenience to people's life and production. Both low-power, massively …

The Narrowband Internet of Things (NB-IoT) is a cellular IoT communication technology to
address the IoT use cases where the smart devices can establish a connection with the …

The widely used Zadoff-Chu sequence (ZC sequence) for random access preamble in 5G
has limitations in terms of the total number of preambles generated, forcing the reuse of …

Code-expanded Random Access (CeRA) is a promising technique for supporting massive
machine-type communications in cellular IoT networks. However, its potentiality is limited by …

With the proliferation of the Internet of things (IoT) applications, it becomes essential for
wireless cellular networks to support energy-efficient communication for an increasing …