Massive access, also known as massive connectivity or massive machine-type
communication (mMTC), is one of the main use cases of the fifth-generation (5G) and …

Multiple access is the cornerstone technology for each generation of wireless cellular
networks, which fundamentally determines the method of radio resource sharing and …

The emerging orthogonal time frequency space (OTFS) modulation technique has shown its
superiority to the current orthogonal frequency division multiplexing (OFDM) scheme, in …

In this paper, we investigate and reveal the ergodic sum-rate gain (ESG) of non-orthogonal
multiple access (NOMA) over orthogonal multiple access (OMA) in uplink cellular …

Given the requirements of increased data rate and massive connectivity in the Internet-of-
things (IoT) applications of the fifth-generation communication systems (5G), non-orthogonal …

We address the joint device activity detection and channel estimation (JACE) problem in a
massive MIMO connectivity scenario in which a large number of mobile devices are …

This paper considers the massive connectivity problem in an asynchronous grant-free
random access system, where a huge number of devices sporadically transmit data to a …

This paper considers a massive random access problem in which a large number of
sporadically active devices wish to communicate with a base station (BS) equipped with …

This paper studies the device activity detection problem in a multi-cell massive multiple-input
multiple-output (MIMO) system, in which the active devices transmit signature sequences to …

Massive machine-type communications (mMTC) is one of the key application scenarios of
fifth generation (5G) and beyond cellular networks. Bringing the unique technical challenge …