Preface - ICCIS 2019

The 2019 4th International Conference on Communication and Information Systems (ICCIS 2019) was held during December 21-23, 2019 in Wuhan, China. The proceedings of ICCIS 2019 records the fully refereed papers presented at the conference, which include 52 excellent papers selected from more than 87 submitted papers. The proceedings tend to present to the readers exactly the frontiers of communication and information systems, which cover the following areas: Communication Principle and Technology; Communication and Information Engineering; Electronics and Communication Engineering; Signal Analysis and Processing; Computer and Information Engineering; Data Science and Intelligent Computing; Electronic Engineering and Control System.