State Key Laboratory of Rail Traffic Control and Safety;
Beijing Jiaotong University;
Beijing 100044;
China;
School of Electronics and Information Engineering;
Beijing Jiaotong University;
Beijing 100044;
China;
ZTE Corporation;
Shenzhen;
Guangdong;
518057;
China;
D2D; high; speed; railway; match-ing; theory; resource; allocation; social; networksystem;