1. FP7 Project Reference Number: 274523. 2011. Base Station (BS) Aided D2D (Device to Device) communication in cellular networks. (2011). Retrieved Accessed 03-04-2019 from http://cordis.europa.eu/project/rcn/98651_en.html
2. 3GPP. 2016. Proximity-based services (ProSe). Technical Specification (TS) 123.303. 3rd Generation Partnership Project (3GPP); Stage 2. Version 13.4.0 Release 13.
3. 3GPP. 2017. Proximity-services (ProSe) User Equipment (UE) to ProSe function protocol aspects; Stage 3). Technical Specification (TS) 24.334. 3rd Generation Partnership Project (3GPP). 3GPP TS 24.334 version 12.0.0 Release 12.
4. 3GPP TR 38.901 V14.0.0. 2017. Study on channel model for frequencies from 0.5 to 100 GHz. (2017).
5. Muhammad Mahtab Alam, Dhafer Ben Arbia, and Elyes Ben Hamida. 2015. Research trends in multi-standard device-to-device communication in wearable wireless networks.. In In Proceedings of the International Conference on Cognitive Radio Oriented Wireless Networks (CrownCom). 735--746.