Nada Tahar, Ahmad T. Abdulsadda, Abdul Kadum Jafar Al Yasiri, Review of Relaying Protocols for Wireless Energy Harvesting and Information Processing, Agricultural Journal, Volume 15,Issue 1, 2020, Pages 1-6, ISSN 1816-9155, aj.2020.1.6, (https://makhillpublications.co/view-article.php?doi=aj.2020.1.6) Abstract: This study concerned with energy harvesting of the relay nodes. One solution to this particular problem in the larger information processing wireless networks is to feed some energy from the received source RF signal by harvesting it then forward to the next relay or to the destination node. In this study, we will be considered an Amplify and Forward (AF) relaying networks and the energy harvested from the (RF) signal and uses that harvests energy to forward the source information to the destination. There are two protocols will be considered and discussed extensively Time Switching based Relay (TSR) protocol, Power Splitting based Relay (PSR) protocol. The mathematical analysis for both protocols was discussed and analysis. Keywords: TSR;delay switching;Wireless nodes;PSR;tolerant