^pElectronics;
and;
Systems;
Institute,;
University;
of;
Strasbourg,;
Strasbourg;
P.O.;
Box;
6703;
7,;
France;
^pof;
Electronics,;
Electrotechnics,;
Automatic;
and;
Telecommunications,;
University;
of;
Douala,;
Douala;
P.O.;
Box;
8698,;
Cameroon;
^pInteligence,;
Process;
and;
Systems;
Laboratory,;
University;
of;
North;
Alsace,;
Mulhouse,;
P;
O.;
Box;
68093,;
France;
^pAdvanced;
School;
of;
Engineering,;
University;
of;
Yaounde;
L;
Yaounde,;
P.;
O.;
Box;
8390,;
Cameroon;