1. Center for Development of Advanced Technologies, CDTA,Telecommunication division,Algeria
2. Centre de Développement des Technologies Avancées, CDTA,Telecommunication division,Algiers,Algeria
3. Underground Communications Research Laboratory, LRTCS University of Quebec in Abitibi-Témiscamingue, UQAT,val-d'Or,QC,Canada
4. University of Sciences and Technologie Houari Boumediene, USTHB,Faculty of electronics and informatics,Algiers,Algeria
5. Friedrich-Alexander University Erlangen-Nuernberg,Underground Communications Department Artificial Intelligence in Biomedical Engineering (AIBE),Germany