Performance Analysis of Dual Hop Half Duplex SWIPT based Cooperative Internet of Things (IoT) Network

Abstract

Simultaneous Wireless Information and Power Transfer (SWIPT) is a green approach that extends the lifetime of energy-limited wireless devices. On the other hand, cooperative communication along with energy harvesting has been shown to be more useful in increasing system capacity, data speeds, data transmission dependability, and energy-deficient relaying. The purpose of this study is to conduct a performance analysis of Internet of Things (IoT) networks based on dual-hop and half-duplex SWIPT based Cooperative Relaying (SWIPT-CoR). A Decode and Forward (DF) relaying protocol is utilized to harvest energy using a Power Splitting Relaying (PSR) method, and a Harvest and Use protocol is used to transmit the information signal to the target IoT device. The Average Symbol Error Probability (ASEP) is calculated analytically and confirmed using Monte-Carlo simulations as a performance indicator. The findings demonstrate that optimum power allocation may be very beneficial in maximizing collected energy at the relay while lowering ASEP for IoT devices at the destination in the presence of a Raleigh fading channel.