CCNS 2021 has been successfully held.
Thanks to all the experts and scholars for their support.

| Conference site |

| Keynote Speeches |

Assoc. Prof. Xiaofeng Ding
Huazhong University of Science and Technology, China
Title: Privacy Preserving Problems in Big Data Publishing and Learning

Assoc. Prof. Xin Yan
Wuhan University of Technology, China
Title: Distributed Consensus Problem over Framework of Federated Learning

Assoc. Prof. Miaowen Wen
South China University of Technology, China, IEEE member
Title: Evolution: from spatial modulation to metasurface modulation
| Oral Speeches |

The conference is held annually, making it an ideal platform for people to exchange ideas and experiences on the Computer Communication and Network Security and we will extend a warm welcome to all of you next year.
The Committee of CCNS 2021
31 July, 2021, Xining