A Study on Value-of-Information and Age-of-Information in a First Responders Health Monitoring System

In this paper, we study the performance of a first responders health monitoring system, where the timeliness update is of crucial importance. The source generates sensory observations of first responders health in the form of packets, which are then served by an M/D/1 queue over an erasure channel. The system efficiency is investigated in terms of the value-of-information (VoI) and the age-of-information (AoI). We consider different queuing disciplines and traffic intensities. The general conclusion is that, in the considered model, the Last-Come, First-Serve queue with preemption maximizes VoI and minimizes AoI.