Topic 1: Communication Engineering
Digital Communication
Multimedia Communication
Wireless communication 
Internet communication
Antenna and Propagation 
Optical Communication and Optical Networks
Mobile Internet and Terminal
RF technology
Satellite communication
Mobile communication
Modern exchange technology
Topic 2: The Internet
Energy saving heterogeneous network
Wireless Sensor Network
Opportunistic network
Cognitive radio network
Network security, etc
Topic 3: Information Security
Information System Security and Management
Network Engineering and Security
Information security algorithms and protocols
Blockchain Information Security
Electric power information security
Applied cryptography 
Database security
Risk assessment 
Operating System Security
Embedded System Security
IoT security and privacy, etc