Funding for this research was provided by:
Technique Innovation Training Program (201610293001Z)
Key Lab of Broadband Wireless Communication and Sensor Network Technology (Nanjing University of Posts and Telecommunications, Ministry of Education) (JZNY201704)
Nanjing University of Posts and Telecommunications (NY217021)
National Natural Science Foundation of China (61401228)
China Postdoctoral Science Foundation (CN) (2015M581841)
Postdoctoral Science Foundation of Jiangsu Province (1501019A)
Natural Science Foundation of Jiangsu Province (BK20140891)