^pEngineering;
and;
Telecommunications;
Department,;
National;
Advanced;
School;
of;
Engineering,;
University;
of;
Yaounde;
1;
in;
Cameroon,;
PO;
Box;
8698;
Douala,;
Cameroon;
^pDepartment,;
Faculty;
of;
Sciences,;
University;
of;
Ngaoundere;
in;
Cameroon,;
PO;
Box;
454;
Ngaoundere,;
Cameroon;
^pEngineering;
and;
Telecommunications;
Department,;
National;
Advanced;
School;
of;
Engineering,;
University;
of;
Yaounde;
1;
in;
Cameroon,;
PO;
Box;
8390;
Yaounde,;
Cameroon;