Performance Analysis for an Opportunistic DF Based WPC System with Interferers over Log-Normal Fading Channels

In this paper, we are dedicated to investigating the outage performance of wireless powered cooperative (WPC) system with interferers over indoor wireless channels characterized by log-normal fading channels, where the relay node and the destination node also exist jamming signals and wireless powered scheme is exploited at the relay node by harvesting energy from ambient jamming signals. Under the opportunistic decode-and-forward (DF) scheme, the source node will broadcast 1-bit pilot signal to the relay node and the destination node. On the basic of the 1-bit feedback signal from the destination node, the system will work in direct link mode (DLM) or cooperative relaying mode (CRM). Analytical expression of outage probability is derived. Numerical results corroborate the impacts of several key parameters on the system performance.