1. Department of Electrical and Computer Engineering, Division of Wireless Communications and Radio Navigation, Rheinland-Pfälzische Technische Universität, Kaiserslautern, Germany
2. Intelligent Networking Research Group, German Research Center for Artificial Intelligence, Kaiserslautern, Germany
3. Research and Innovation Department, ATOS Spain, Madrid, Spain
4. Network Architecture and Automation Department, Orange Labs Networks, Issy-les-Moulineaux, France