The quantum approximate optimization algorithm (QAOA) conceived for solving
combinatorial optimization problems has attracted significant interest since it can be run on …

Reconfigurable antenna multiple-input multiple-output (MIMO) is a promising technology for
upcoming 6G communication systems. In this paper, we deal with the problem of …

Quantum Annealing provides a heuristic method leveraging quantum mechanics for solving
Quadratic Unconstrained Binary Optimization problems. Existing Quantum Annealing …

Reconfigurable antenna multiple-input multiple-output (MIMO) is a foundational technology
for the continuing evolution of cellular systems, including upcoming 6G communication …

Quantum computing is a promising technology which is able to speed up computation, by
several orders of magnitude, with respect to classical systems. In particular, quantum …

In a multi-user system with multiple antennas at the base station, precoding techniques in
the downlink broadcast channel allow users to detect their respective data in a non …

Maximum-likelihood multiuser detection incurs a large computational complexity, and its low-
complexity detection scheme suffers from a performance loss, where this tradeoff is …

For some so-called computationally difficult problems, using the method of Boolean logic is
fundamentally inefficient. For example, the vertex coloring problem looks very simple, but the …

Abstract The Service-Based Architecture (SBA) of the fifth generation (5G) of cellular
networks introduced great advancements in flexibility, efficiency, and performance of …

In order to meet mobile cellular users' ever-increasing data demands, today's 4G and 5G
networks are designed mainly with the goal of maximizing spectral efficiency. While they …