1. School of Information Engineering, Hebei GEO University, Shijiazhuang 050031, China
2. Intelligent Sensor Network Engineering Research Center of Hebei Province, Shijiazhuang 050031, China
3. Xinjiang Institute of Engineering, Information Engineering College, Ürümqi 830023, China
4. Shanwei Institute of Technology, Shanwei 516600, China
5. School of Computer Science and Engineering, Huizhou University, Huizhou 516007, China