1. University of Sciences and Technology Houari Boumediene, USTHB,Faculty of electronics and informatics,Algiers,Algeria
2. Center for development of advanced technologies, 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 Quebec in Outaouais Electrical Engineering,Department Gatineau,Quebec,Canada
5. Durham University,Department of Electrical Engineering,Durham,United Kingdom