Outage probability for a multiuser NOMA-based network using energy harvesting relays

Abstract

This article evaluates the energy-harvesting capabilities of a multiuser non-orthogonal multiple access-based system, where energy harvesting relays utilise the power splitting relaying protocol to harvest energy and amplify-and-forward protocol to forward the signals to the connected users. The expressions for each user’s energy harvesting outage probability are calculated and compared to the same system model without energy harvesting. Simulation results show the effectiveness of the energy-harvesting relay nodes and the improved outage probability of each user.

Keywords

• noma
• energy harvesting
• power splitting protocol
• amplify-and-forward
• outage probability