A robust power allocation is proposed for downlink non-orthogonal multiple access (NOMA)
heterogeneous networks with EH (Energy harvesting) under imperfect channel state …

As a promising technology to improve spectrum efficiency and transmission coverage,
Heterogeneous Network (HetNet) has attracted the attention of many scholars in recent …

Non-orthogonal multiple access (NOMA) is a promising emerging technology that can
significantly improve the utilization of spectrum and system capacity in heterogeneous …

Fairness among different users and system robustness are key issues in the future
communication network design. A robust max-min fairness energy efficiency (EE) …

In this paper, an optimal user power allocation scheme is proposed to maximize the energy
efficiency for downlink non-orthogonal multiple access (NOMA) heterogeneous networks …

Non-orthogonal multiple access (NOMA)-enabled heterogeneous networks (N-HetNets) can
provide higher system capacity and spectrum efficiency by allowing multiple users …

In wireless communication transmission system, it is difficult to obtain the perfect channel
state information (CSI) due to the stochastic channel condition and link delay, but most of …

With the increasing requirements of high data rates and large connectivity, the application of
the non-orthogonal multiple access (NOMA) technique in heterogeneous networks …

This paper proposes a framework of users association and power allocation in the two-tier
heterogeneous networks with nonorthogonal multiple access (NOMA). Taking account of …

The increasing in energy consumptions of the current wireless networks, leads towards
designing energy-efficient 5G networks. The application of non-orthogonal multiple access …