ICMU 2016 – The Ninth International Conference on Mobile Computing and Ubiquitous Networking – focuses on the active area of research and development in mobile communications, applications, algorithms and systems as well as ubiquitous services and computing. The special focus of this year’s ICMU includes advancing technologies for next generation distributed and ubiquitous computing where human, networked sensors, connected devices and environment are involved. Examples of such technologies are human-centric sensing and its analysis and applications, energy-efficient mobile systems, social-networking, machine-to-machine communications and their applications, mobile cloud computing and mobile social P2P. Not only these issues but also fundamental algorithms and theory for mobile system privacy, security, communication quality, reliability and robustness are also the topics of interest.