College of Engineering

Master thesis was discussed in Department of Electrical Engineering / College of Engineering at University of Mosul entitled “Signal-to-Noise Ratio Improvement for a Non-Line-of-Sight link using reconfigurable intelligent surfaces”, submitted by (Bushra Jarjees Qeryaqos), Supervised By Assist. Prof. Dr. Saad Ahmed Ayoob On Monday, September, 30, 2024.
The thesis aimed to study the feasibility of using reconfigurable intelligent surfaces (RISs) to improve the signal-to-noise ratio (SNR) and signal-to-interference-plus-noise ratio (SINR) for a Non-Line-Of-Sight (NLOS) link”
The thesis discussed “The effect of the signal-to-noise ratio (SNR) by changing the site of the reconfigurable intelligent surface (RIS) as well as finding the optimal dimensions that give the maximum value of (SNR). Three reconfigurable intelligent surfaces (RISs) were designed at different heights to improve the signal-to-interference-plus-noise ratio (SINR). The coverage range domain of the same three surfaces was analyzed, and their sizes were changed in proportion to their height”
The results showed “The maximum value of the signal-to-noise ratio (SNR) was achieved by choosing a location for the reconfigurable intelligent surface (RIS) that is proportional to the distance between the transmitter and the receiver. Deploying three intelligent reconfigurable surfaces (RISs) at different heights reduced the inter-user-interference ratio (IUI) and improved the signal-to-interference-plus-noise ratio (SINR). Changing the size of the RISs leads to an increase in gain and achieving equal signal level for each RIS for all users”.