Abstract:

As crowd-sensing networks can efficiently address the key problem of large-scale sensor networks,i. e. large quantities of deployment and maintenance cost, it becomes a research hotspot for the Internet of Things. This paper presents the state-of-the-art of crowd-sensing networks. We first introduce the definition, the origin and the framework of crowd-sensing networks, followed by the analysis of its characteristics and the comparison with traditional sensing networks. And then, recent researches of crowd-sensing networks are surveyed in terms of environment sensing, public infrastructure sensing and social sensing. Finally, we point out three important directions for the future research of Crowd-Sensing Networks and analyze their challenges, to give a reference and help for the future study.

Key words: internet of things, crowd-sensing networks, smart phone