Urgency of Information for Context-Aware Timely Status Updates in Remote Control Systems

@article{Zheng2020UrgencyOI,
  title={Urgency of Information for Context-Aware Timely Status Updates in Remote Control Systems},
  author={Xi Zheng and Sheng Zhou and Zhisheng Niu},
  journal={IEEE Transactions on Wireless Communications},
  year={2020},
  volume={19},
  pages={7237-7250}
}
As 5G and Internet-of-Things (IoT) are deeply integrated into vertical industries such as autonomous driving and industrial robotics, timely status update is crucial for remote monitoring and control. In this regard, Age of Information (AoI) has been proposed to measure the freshness of status updates. However, it is just a metric changing linearly with time and irrelevant of context-awareness. We propose a context-based metric, named as Urgency of Information (UoI), to measure the nonlinear… 
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23 Citations

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