In the fifth generation (5G) of wireless communication systems, hitherto unprecedented
requirements are expected to be satisfied. As one of the promising techniques of addressing …

Fifth generation (5G) wireless networks face various challenges in order to support large-
scale heterogeneous traffic and users, therefore new modulation and multiple access (MA) …

Due to the explosive growth in the number of wireless devices and diverse wireless
services, such as virtual/augmented reality and Internet-of-Everything, next generation …

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 …

In the past few years, a large body of literature has been created on downlink Non-
Orthogonal Multiple Access (NOMA), employing superposition coding and Successive …

This article presents advances in resource allocation for downlink non-orthogonal multiple
access (NOMA) systems, focusing on user pairing and power allocation algorithms. The …

In this paper, the performance of multiple-input multiple-output non-orthogonal multiple
access (MIMO-NOMA) is investigated, when multiple users are grouped into a cluster. The …

Today's wireless networks allocate radio resources to users based on the orthogonal
multiple access (OMA) principle. However, as the number of users increases, OMA based …

Mobile communication systems are always in continuous evolution due to the demands of
the end-users using this technology. Therefore, before the possible launch of 5G, some …

In this paper, energy efficient resource allocation is considered for an uplink hybrid system,
where non-orthogonal multiple access is integrated into orthogonal multiple access (OMA) …