Outage Performance Analysis of RIS-aided D2D Networks for Healthcare Application

Energy consumption is one crucial aspect in IoT and healthcare applications. Reconfigurable intelligent surface (RIS) is composed of man-made passive reflective elements which can configure the channel environment with lower energy consumption. In this paper, we focus on the RIS-assisted D2D networks. We obtain analytical closed-form expressions for the outage performance. Based on this, we then discuss the performance under high SNR case, as well as weak interference case. The corresponding closed-form simpler approximations are also presented. Due to the existence of interference, 0 order outage diversity is obtained. Numerical results show the agreement between Monte Carlo simulations and analytical results in various network configurations.