The tremendous development in the field of communications is derived from the increasing
demand for fast transmission and processing of huge amounts of data. The non-orthogonal …

Nonorthogonal multiple access (NOMA) is one of the promising access techniques in 5G
network. The application of relay in NOMA system is a hotspot in recent research. NOMA …

The rising need for mobile internet services and the proliferation of the Internet of Things
present complex demands for 5G wireless communications. These demands include the …

Non-orthogonal multiple access (NOMA) has been focused to increase system capacity and
spectral efficiency for the fifth generation (5G) mobile networks. In order to improve the …

Due to the huge connectivity and ever-growing demands of diverse services and high data
rate applications, more effective radio access techniques are required for the next …

A non-orthogonal multiple access (NOMA) scheme as a promising strategy for future
wireless communication networks is proposed in a multi-cell scenario, in which the presence …

This paper studies enhancing non-orthogonal multiple access (NOMA) spectral efficiency
(SE) through optimizing the assigned power to each NOMA user depending on their channel …

Optimization of the energy efficiency, fairness, and rates of the system is a vital part of
communication systems. Multiple access techniques have a huge potential to enhance such …

NOMA (Non-orthogonal multiple access) system becoming a strong candidate for 5G
cellular system of its high spectral efficiency. This paper considers an optimal power …

In this paper, non-orthogonal-multiple access is used in a single cell environment which
employs cooperative relays for transferring signals to poor quality users, as compared to …