Quality of Information in Mobile Crowdsensing: Survey and Research Challenges

Abstract

Smartphones have become the most pervasive devices in people’s lives and are clearly transforming the way we live and perceive technology. Today’s smartphones benefit from almost ubiquitous Internet connectivity and come equipped with a plethora of inexpensive yet powerful embedded sensors, such as an accelerometer, a gyroscope, a microphone, and a camera. This unique combination has enabled revolutionary applications based on the mobile crowdsensing paradigm, such as real-time road traffic monitoring, air and noise pollution, crime control, and wildlife monitoring, just to name a few. Differently from prior sensing paradigms, humans are now the primary actors of the sensing process, since they become fundamental in retrieving reliable and up-to-date information about the event being monitored. As humans may behave unreliably or maliciously, assessing and guaranteeing Quality of Information (QoI) becomes more important than ever. In this article, we provide a new framework for defining and enforcing the QoI in mobile crowdsensing and analyze in depth the current state of the art on the topic. We also outline novel research challenges, along with possible directions of future work.

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Index Terms

• Computer systems organization

  • Embedded and cyber-physical systems

    • Sensor networks

• Human-centered computing

  • Collaborative and social computing

    • Collaborative and social computing systems and tools

      • Reputation systems

  • Ubiquitous and mobile computing

    • Ubiquitous and mobile devices

      • Smartphones

• Security and privacy

  • Formal methods and theory of security

    • Trust frameworks