Relays have been deployed to provide connectivity to heavily blocked and isolated radio
environments, but suffer from severe data rate losses due to the half-duplex nature of relays …

Two-Way Relaying (TWR) has been widely investigated in the literature as an efficient
relaying scheme for dual-hop cooperative transmissions. In TWR, two nodes exchange data …

In this paper, a novel cooperative non-orthogonal multiple access (NOMA) system is
proposed, where one near user is employed as decode-and-forward relaying switching …

NOMA is a promising radio access technique for next-generation wireless networks. In this
article, we investigate the NOMA-based cooperative relay network. We begin with an …

In this article, we propose a downlink non-orthogonal multiple access (NOMA) based
coordinated direct and relay system with one cell-center user and multiple cell-edge users …

In this paper, we consider non-orthogonal multiple access (NOMA) relaying networks, where
one base station communicates with two mobile users with the aid of multiple relays. We …

This paper investigates the performance of cooperative non-orthogonal multiple access
(NOMA) systems, where one near user works as a decode-and-forward (DF) full-duplex (FD) …

Non-orthogonal multiple access (NOMA) aims to increase the spectral efficiency of fifth
generation networks by relaxing the orthogonal use of radio-resources. In this paper, a …

A coordinated direct and relay transmission is proposed using uplink non-orthogonal
multiple access (UP-NOMA). A two-user UP-NOMA scenario is considered, where a cell …

Non-orthogonal multiple access (NOMA) is a promising technology in future communication
systems. In this paper, we propose a buffer-aided NOMA relaying system, which consists of …