A Survey on Cooperative Noma and Energy Harvesting Issues in Wireless Communication

Abstract

Introduction: Cooperative non-orthogonal multiple-access (C-NOMA) is an enhanced version of NOMA technology to overcome the limitations of wireless signal propagation due to obstacles.

Objectives: In this paper, a survey of the C-NOMA mechanism and energy harvesting protocols in the relay nodes of the C-NOMA is presented.

Methods: We perform the detailed analyses and discussions of two common power splitting- and time switching-based energy harvesting mechanisms, the applications and the challenges, of the C-NOMA networks based on the published works.

Results: We demonstrate the inheritance of C-NOMA based on NOMA to gain insight into enhancing the performance of wireless-powered communication networks. Furthermore, a detailed analysis of two common power splitting- and time switching-based energy harvesting mechanisms is also presented. In addition, the applications of C-NOMA are also discussed. Finally, the challenges, e.g., SIC and CSI, of the C-NOMA networks are analyzed.

Conclusions: Thus, this overview provides a background on C-NOMA for deeper investigations into this latest technology.