Department of Electronics and Communication Engineering;
Beijing Electronic Science and Technology Institute;
Beijing;
100070;
China;
Vocational and Technical College;
Guilin University of Electronic Technology;
Beihai;
536000;
China;
School of Computer and Communication Engineering;
University of Science and Technology Beijing;
Beijing;
100083;
China;
University of Management Technology;
Lahore;
55300;
Pakistan;
Route; LEO satellite; SDN; state assessment; inter-satellite link;