Gao, Chenqiang
Liu, Jun
Feng, Qi
Lv, Jing
Funding for this research was provided by:
National Natural Science Foundation of China (61571071, 61102131)
Natural Science Foundation of Chongqing Science and Technology Commission (cstc2014jcyjA40048)
Wenfeng innovation and start-up project of Chongqing University of Posts and Telecommunications (WF201404)