sensing and mobile devices have been widely used to construct intelligent human life. with the prevalence of those devices, smart sensing and mobile computing enables information gathering and sharing of people and their surrounds, and hence become the fundamental motivator for network and computing evolutions. the fast growth in the deployments of mobile devices brings promising opportunities and challenges. we aim at using those ubiquitous device to enable the device based and device free sensing, networking, and computing, and hence support more intelligent mobile and user-centric services.