InstituteofSystemsScience;
ChineseAcademyofSciences;
Beijing;
100080;
China;
DeptartmentofElectricalandComputerEngineering;
PortlandStateUniversity;
Portland;
OR97207-0751;
USA;
DepartmentofEngineenng;
UniversityofLeicester;
UniversityRoad;
LeicesterLE17RH;
UK;