This paper considers the massive random access problem in multiple-input multiple-output
(MIMO) quasi-static Rayleigh fading channels. Specifically, we derive achievability and …

The pressure to develop new network architectures and multiple access technologies is
driven by increasing demands on network performance, number of devices, network traffic …

To account for the massive uncoordinated random access scenario, which is relevant for the
Internet of Things, Polyanskiy et al.(2017) proposed a novel formulation of the multiple …

Wireless communication systems to date primarily rely on the orthogonality of resources to
facilitate the design and implementation, from user access to data transmission. Emerging …

Covert communication, also known as communication with low probability of detection, aims
to provide reliable communication for legal users and prevent any other user from detecting …

This paper considers the single antenna, static, scalar Gaussian broadcast channel in the
finite blocklength regime. Second order achievable and converse rate regions are …

Wireless communication has traditionally been designed to connect human users. The main
design goal was to maximize the data rate while guaranteeing moderate reliability and …

We investigate the coexistence of massive and critical Internet of Things (IoT) services in the
context of the unsourced multiple access (UMA) framework introduced by Polyanskiy (2017) …

We investigate early decoding in a Gaussian broadcast channel with heterogeneous
blocklength constraints when shell codes are used. By shell codes, we refer to non-iid codes …

We study the Gaussian multiple access channel with random user activity, in the regime
where the number of users is proportional to the code length. The receiver may know some …