The MIUCC 2021 is intended to provide a forum to exchange experiences and promote recent trends in the fields of intelligent technologies in mobile and ubiquitous computing environment. The distinguishing characteristic of MIUCC 2021 is the promotion of an intense dialogue between academia and industry to bridge the gap between academic research, industry initiatives, and governmental policies. This is fostered through panel discussions, keynotes, invited talks, and industry exhibits, where academia is exposed to state-of-the-practice and results from trials and inter-operability experiments. The industry, in turn, benefits from exposure to leading-edge research in networking as well as the opportunity to communicate with academic researchers regarding practical problems. It is also an excellent opportunity for young researchers to demonstrate current research and developments in the research fields. We invite all the authors to participate and to contribute with their communications work, innovative research or technological development.