These codes and the corresponding Android application for D2D communications that are available at (https://github.com/CRCDApp/CRCD) have been developed by the GTMD research Lab at Isfahan University of Technology and the NetSciWiS research Lab at Virginia Tech (ECE Department), under the supervision of Dr. Mohammad Hossein Manshaei and Dr. Walid Saad, respectively. For further information, feel free to contact us at: [email protected] or [email protected].