Zhongyuan Jing is currently pursuing the Ph.D. degree in information and communication engineering with the School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China. His research interests include federated learning, privacy computing, and security. Ruyan Wang is a professor at Chongqing University of Posts and Telecommunications. He received the Ph.D. degree from the University of Electronic Science and Technology of China, Chengdu, China, in 2007, and the M.S. degree from the Chongqing University of Posts and Telecommunications, Chongqing, China, in 1997. Since December 2002, he has been a Professor with the Key Laboratory of Optical Communication and Networks in Chongqing. His research interests include network performance analysis and multimedia information processing.