TY - JOUR TI - Outage performance evaluation of device-to-device system with energy harvesting relay AU - Simonović Miloš B AU - Cvetković Aleksandra AU - Manojlović Jelena Ž AU - Nikolić Vlastimir D JN - Thermal Science PY - 2021 VL - 25 IS - 3 SP - 1771 EP - 1780 PT - Article AB - The development of Internet of Things devices as well as the increase of nodes in wireless networks, motivates the use of node’s cooperation for wireless system performance improvement. On the other hand, the power requirements of the increasing number of nodes leads to the need for new powering sources. In this paper we consider device-to-device relay-assisted system, where decode-and-forward relay is not equipped with its own power supply, but it harvests energy and uses it for the data transfer to the destination node. System performance is derived for the Fisher-Snedecor F composite fading channel model and energy harvesting protocol based on time-switching scheme. The closed-form approximate expression for the outage probability is derived, that corresponds to the exact results. The impact of the channel fading and shadowing parameters and time-switching factor of energy harvesting protocol on the system performances are investigated. Numerical results are confirmed by an independent simulation method.