ABSTRACT
Energy harvesting networks (EHNs) are a trending subject among the ongoing developments. This considerable consideration is because of the restrictions, operational expense and dangers of the regular power providers. In addition, EHNs are required to improve energy productivity by collecting the energy of RF and renewable sources. EHN is applied to CR technology and this EHCR (energy harvesting cognitive radio) is required to use both vitality and electromagnetic spectrum effectively. Various techniques have been proposed to harvest energy and use the spectrum efficiently. The aim of this paper is to review recent EHCRN works and to improve throughput and channel utilization rate.
