Dept. of Communication Networks and Systems, Faculty of Artillery, Air-Defence and Communication-Information Systems, Vasil Levski National Military University, Shumen

Dept. of Communication Networks and Systems, Faculty of Artillery, Air-Defence and Communication-Information Systems, Vasil Levski National Military University, Shumen

University of Telecommunications and Posts, Technical University of Sofia

Faculty of Computer Science, Sultan Qaboos University, Muscat

Liverpool John Moores University

Trakia University

College of Energy and Electronics, Technical University of Sofia

Technical University of Sofia

Technical University-Sofia, University of Telecommunications and Posts

Liverpool John Moores University