2021 The 2nd Communication Technologies and Cloud Computing Conference (CTCCC 2021)--Ei Compendex, Scopus Edinburgh, United Kingdom | March 17-19, 2021 Official Website: http://www.ctccc.org *Topics: Wireline networks, Wireless networks, Core Network Architectures and Protocols, Software Engineering, Network Resilience, Ubiquitous Computing, etc For details about topics, please visit: http://www.ctccc.org/topic.html *Conference Proceedings: Accepted papers after proper registration and presentation will be published in the Conference Proceedings, which will be submitted for indexing by Ei Compendex, Scopus, etc. *Submission: English is the official language. Paper should be prepared and presented in English. Submission: By online submission system: http://confsys.iconf.org/submission/ctccc2021 By Email: ctccc@iacsit.net Template: Please format your paper according to the template which can be downloaded at CTCCC 2021 official website before submission. *Contact: Mrs Gloria Liang (Conference Secretary) Email: ctccc@iacsit.net Tel: +86-18000547208 Wechat: iacsit2009