Beijing Univ Posts & Telecommun;
State Key Lab Networking & Switching Technol;
Beijing 100876;
Peoples R China;
Beijing Univ Posts & Telecommun;
Inst Sensing Technol & Business;
Wuxi 214028;
Peoples R China;
Beijing Jiaotong Univ;
Natl Engn Lab Next Generat Internet Interconnect;
Beijing 100044;
Peoples R China;