In this letter, a cooperative non-orthogonal multiple access system with imperfect successive
interference cancellation is investigated in an underlay cognitive radio network. Considering …

This paper considers the secrecy outage performance of a multiple-relay assisted non-
orthogonal multiple access (NOMA) network over Nakagami-m fading channels. Two time …

This paper investigates the performance of a new framework for low-outage downlink non-
orthogonal multiple access (NOMA) using a coordinated direct and relay transmission …

Non-orthogonal multiple access (NOMA) has been a strong candidate to support massive
connectivity in future wireless networks. In this regard, its implementation into cooperative …

As a promising physical layer technique, nonorthogonal multiple access (NOMA) can admit
multiple users over the same space-time resource block, and thus improve the spectral …

Non-orthogonal multiple access (NOMA) is one of the key technologies to serve in ultra-
dense networks with massive connections which is crucial for Internet of Things. Besides …

Cooperative and cognitive non-orthogonal multiple access (CCR-NOMA) has been
recognized as a promising technique to overcome spectrum scarcity and massive …

Intelligent reflecting surface (IRS) has emerged as a promising and low-cost technology for
improving wireless communications by collecting dispersed radio waves and redirecting …

We propose an indoor lightwave downlink wireless communication network with the non-
orthogonal multiple access (NOMA) technology, that consists of one visible light …

In this paper, we consider a relay-assisted uplink non-orthogonal multiple access (NOMA)
system. In this system, two radio frequency (RF) users are grouped for simultaneous …