In recent years, the use of massive multiple-input multiple-output (MIMO) systems and higher
frequency bands for next-generation urban rail transportation systems has emerged as an …

This paper studies a generalization of sparse superposition codes (SPARCs) for
communication over the complex additive white Gaussian noise (AWGN) channel. In a …

This paper considers the Gaussian multiple-access channel in the asymptotic regime where
the number of users grows linearly with the code length. We propose efficient coding …

We study the Gaussian multiple access channel (MAC) in the asymptotic regime where the
number of users grows linearly with the codelength. We analyze coding schemes based on …

Sparse regression codes (SPARCs) are a class of channel codes for efficient
communication over the single-user additive white Gaussian noise (AWGN) channel at rates …

Providing connectivity to a massive number of devices is a key challenge in 5G wireless
systems. In particular, it is crucial to develop efficient methods for active device identification …

We consider a Gaussian multiple-access channel where the number of users grows with the
blocklength n. For this setup, the maximum number of bits per unit-energy that can be …

Providing connectivity to a massive number of devices is a key challenge in 5G wireless
systems. In particular, it is crucial to develop efficient methods for active device identification …

We consider a Gaussian multiple-access channel with random user activity where the total
number of users ℓ n and the average number of active users kn may be unbounded. For this …

In recent years, the use of massive multiple-input multiple-output (MIMO) systems and higher
frequency bands for next-generation urban rail transportation systems has emerged as an …