1. Hubei Province Key Laboratory of Applied Mathematics, Faculty of Mathematics and Statistics, Hubei University, Wuhan, China
2. School of Cyber Science and Technology, Hubei University, Wuhan, China
3. Information Coding and Transmission Key Laboratory of Sichuan Province, CSNMT Int. Coop. Res. Centre (MoST), Southwest Jiaotong University, Chengdu, China