Ph.;
D;
candidate;
of;
Management;
School,;
Wuhan;
University;
of;
Technology,;
Wuhan,;
430070;
born;
in;
Hubei;
Province,;
student;
of;
telecommunication;
school,;
Wuhan;
University;
of;
Technology,;
Wuhan;
430070;
Management;
School,;
Wuhan;
University;
of;
Technology,;
Wuhan,;
430070,;
P.;
R.;
China;