Affiliation: | 1.Department of Basic Science, Air Force Engineering University, Xi’an, 710051, Shaanxi, China ;2.School of Telecommunications Engineering, Xidian University, Xi’an, 710051, Shaanxi, China ;3.School of Information and Network Engineering, Anhui Science and Technology University, Chuzhou, 233100, China ;4.School of Mathematical Science, Huaibei Normal University, Huaibei, 235000, China ; |