Performance Evaluation of Multiple Unmanned Aerial Vehicles Operating in General Regime with Shortage of Maintenance Facilities

Abstract

We consider a real-world problem of military intelligence unit equipped with multiple identical unmanned aerial vehicles (UAV) responsible for several regions (with requests of real-time jobs arriving from independent sources). We suppose that there are no ample maintenance facilities, allowing simultaneous treatment of all vehicles if necessary. Under certain assumptions, these real-time systems can be treated using a queueing theory methodology and/or as Markov chains. We show how to compute steady-state probabilities of these systems, their performance effectiveness, and various performance parameters (for exponentially distributed service and maintenance times of UAVs, as well as tasks duration and their arrival pattern).

UAV Fleet as a Dependable Service for Smart Cities: Model-Based Assessment and Application

“…On the basis of such models, it is possible to quickly rebuild the fleet for the provision of services, in particular, the delivery of medicines when tasks and conditions change. These are the main differences between the models in comparison with studies [29,36,42]. Despite some simplification of the considered cases, they provide a certain algorithm for applying the models developed in Section 3 and confirm their correctness and practicality.…”

“…The analyzed papers that are devoted to UAV applications for smart cities can be subdivided into three groups: the papers related to general issues of UAV applications including different city services [1,2,[6][7][8][9][13][14][15][16][17][18][19][20][21][22][23][24], the papers related to dependability (reliability) issues of UAV applications [25][26][27][28][29][30][31][32][33], and the papers related to issues on queueing theory utilization for describing UAV functioning [34][35][36][37][38][39][40][41][42].…”

“…One study [36] demonstrated how, under certain assumptions, a military intelligence unit equipped with multiple identical UAVs can be treated using a queueing theory methodology and/or as Markov chains. Using these models, the steady-state probabilities of the unit, its performance effectiveness, and various performance parameters were calculated.…”